04 silverado losing coolant. So I added ultraviolet dye to the coolant system.

04 silverado losing coolant Get repair estimates and expert advice on RepairPal. I just returned the rental pressure test today, so fingers crossed. Come join the discussion about 2012 Silverado 3500 dually, 6. I proceeded to add more coolant but when I loosened cap antifreeze spilled over into the fender side of overflow tank. I have to keep topping off my coolant or my engine will run too hot. 2016 Silverado 1500 5. 8. This problem could trace back to a number of different things but I always try out the cheapest solutions first. 2. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Signs of Losing Coolant. , Battle Creek, MI, US. Jump to Latest 30K views 26 replies 20 participants last post by krazy!karl Mar 12, 2019. It is essential to determine the reason for the coolant loss and address it promptly. Save Share Reply Quote Like. I took it to the dealer back in July, there was a recall on the block heater, so they did the recall and pressure checked the system and said it showed good. 2013GMCSLT Discussion starter. RANDY SHARP MEMBER; 2004 CHEVROLET SILVERADO; 4. I have checked and no leaks to be found, temp gage reads normal, can someone please provide some information as to why I'm losing coolant and how do I fix the problem. there's a slow coolant leak on my 2001 silverado 6. tank level after self drain. I would lose half of a coolant tank in about 200 miles. Then overnight will lose half a reservoir. 2004 Chevrolet Silverado loosing coolant. 8L) It's just this coolant loss issue and the transmission (which is being fixed soon) Other than that it's a great truck. 2006 Silverado 1500 Atomic Coilover Conversion - Viking Warrior/PAC Springs RCX 4" lift Cognito UCAs American Outlaw Bandit wheels - 17x9/-10 Check common causes of coolant leaks in the 2004 Chevrolet Silverado 1500, including hoses and water pumps. Truck only has 160k miles on her and it's always been a Florida truck, well kept. Help? Reply. Coolant problem 2005 Silverado 5. Losing Coolant After Shutdown Silverado Car Forums . to replace it wook 2-3 labor hours and 25 hey everyone I opened my big mouth on the white smoke thread now my truck is losing coolant. 6 duramax at/or near Cooling system components. 3L Flex 6L80E 3. DSMech Discussion starter. I would slowly loose coolant and had trouble tracking it down. 2010 Silverado 5. But it is is loosing a lot of coolant. The heater warming up great within minutes rather than 15-20 minutes. Truck was not plugged in. A ton of LED's inside and out. Insert Quotes Post Reply Truck Talk. Average Mileage 2000 Silverado Coolant Leak . 7L | 4x4 | CCSB | 100,000 miles and counting. Check for signs of leakage, such as green or yellow fluid droplets, and inspect your Hello everyone. Here’s a step-by-step approach to help you identify the leak:1. About 150-200 miles to empty my reservoir of coolant. TheMightyWhitey. My 2000 Silverado 5. The GM tech found a very small drop of coolant at the EGR unit, and there appeared to be a small fissure in the weld on the unit. 3 Vortec with now 192k on the engine. 3 C1500. 2003 Silverado using coolant - no signs of leak AT ALL i have located a 6. Browse Categories Answer Questions . I replaced my coolant cap and it has fixed maybe 80% of my coolant loss. Check the Radiator: Examine the radiator for any cracks, holes, or leaks. So I just ordered the 6. Average repair cost is $700 at 93,450 miles. linkovich Discussion starter. problem # 4. If Outside temperature was about -17c. 0 solution kit with egr cooler upgrade from sinister diesel. 0L out of an 04 Escalade recently (trying to think ahead just in case); it has 250k miles on it and needs a total rebuild. 1 . Jump to Latest I have a 2000 Chevrolet Silverado 2wd with the 5. . 2000 Chevrolet Silverado, 180,000+ miles, No modifications to speak of Good truck if I can figure out where my d@mn coolant is going 2006 Honda Accord (Mrs. Inspect the Engine Bay: Look for visible signs of coolant leakage, such as puddles, stains, or drips. I can't see any leaks under the hood, nothing dripping on the ground, nothing inside the cab. The coolant level must be checked when the engine is cold and the vehicle must be on a level surface. My engine does not leak while running but after use of the AC and shut down of the engine, a waterfall of water or coolant poors from under the engine. What causes an engine to lose coolant but not leak visibly? These are the four most common reasons: Head gasket is internally leaking into the The first thing you do is pressure test the radiator cap then the cooling system at the psi marked on the radiator cap and look for leaks. 3 and 6. At 300k miles, my 1999 4. They could of messed up with the bleeding procedure. 3L V8. Come join the discussion about performance, modifications, classifieds 2004 Silverado 2500HD, 6. 3L engine and are experie Hello all once again problem with the Chev losing coolant smells horrible I'vegot the 5. the engine may overheat as a 3 Model Years Affected. 3L V6. to/2K5gEv4OEM GM White heater core fitting Buy here. The coolant loss seems to be random. 8L; V8; 2WD; AUTOMATIC; 110,000 MILES; You're losing coolant now without performing a pressure test, (although the loss may be only occurring when pressure builds up in the system). My radiator cap was bad and coolant was evaporating. It is bad head casting leading to coolant (all be it a very tiny amount) leaking into the combustion chamber on initial start up . strutaeng. Problem still there, even worse. Send Comment Add Complaint. If you are losing coolant over a longer period, two to three day’s, but it I have an 04 Silverado with the 8. Coolant will escape as liquid or vapor, depending on the leak’s location. 3L LT . I have had the cooling system pressure tested by a dealer and an independent mechanic and both say that there is not a pressure leak in the system. It had coolant dripping signs on the side of the hose (previous owner put a napkin on the bottom of the reservoir overfill hose to soak up the coolant drips lol). Losing coolant in overflow. The engine heats up and the leak If you are losing coolant and can't find a leak it may be going into the engine from a failed head gasket. 0 , well I losing coolant it just started this about a week ago and since then I put 2 gallons of coolant in it since and before I never had to add nothing to it. 62 posts · Joined 2014 Add to quote; Only show this user #1 · Mar 29, 2015. The loss will continue just as before, only now there will be Truck is a 2003 Silverado (stock 4. 2 has a Tech service bulletin regarding this issue. 8T - Silver - Daily Driver - Cold Air Intake, ECS Tuning Turbo Back Exhaust Losing coolant somewhere, but passed pressure test. 3 has a small coolant leak, I have to add a few quarts once every 1. Are there any leak tests to verify if thats the problem? About every 3-4 days of driving i have to add coolant, no visible leaks anywhere If you are loosing coolant on your gmc or chevy truck at a slow rate and can't find where you are loosing it, 99% of chances that it is the water pump gaske 2003 chevy silverado 2500 hd coolant leak 2 Answers. I had this same problem with my 2005 1500. Search Fixya. I don't see any external leaks but my coolant keeps going low. Attachments. 0 helpful. Recently I have been losing coolant somewhere. If you can't find any coolant leaks, this may explain the coolant smell. The level on my dip stick hasn't risen any and the underside of my fill cap doesn't have any milky residue. coolant reservoir. so it looks as though im not physically loosing coolant just excessive preasure causing it to look like its gone. 3 A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. The oil is gone well before I am due for an oil change and the coolant reservoir becomes pretty much My 99 silverado had that heater hose quick connect failure. Add your complaint? Back; Crash Tests 3; Silverado Recalls 15; Defect Invest. Wound up being the water pump letting such a small amount the fan would dry it. https://amzn. I have a 2000 silverado with a 5. This video shows you where the coolant reservoir, hoses and connections on your 2004 Silverado 1500 I have a 2005 Silverado 5. I noticed last week that coolant was a little below the "Cold Full" mark. Any signs of coolant or discoloration and you probably have a leaking pump. to/2JMNUZqCHANGE BOTH Heater core Losing coolant 2018 Silverado 2500. 2000 5. cooler line bl Chevrolet 2500 HD: 04 2500 HD 6. Pinpointing the source of the coolant leak is crucial for effective repair. 3l 25k miles randomly loosing coolant, but no visible leaks. jpg. so I have a 2003 chevy Silverado 2500 hd 6. Customer. 90 GMC 2500 ext cab 4x4 Crew 6. Checked level and it was down. '04 350 4WD Lariat Crew Longbed (built 05. I bought some ac delco dye. Hopefully ZekerMan is right. 0L that I currently have an issue with a coolant leak. Chevy Silverado 1500, 2010 5. 8 i have had the truck for 5 years and have always smelt coolant under the hood but never was too concerned where the coolant level stayed where it should. 3 posts · Joined 2011 Add to quote; Only show this user #1 · Aug 8, 2011. It has a couple o-ring type seals that deteriorate and start to allow some steam loss over time. 2004 Chevy Silverado Loosing Coolant. The upper portion coolant level should be at or above, the bottom of the indicator arrows. There are no signs of external leakage, but every now and then I think I can smell antifreeze. Lifted 2002 Silverado z71 5. 3 and it is losing oil and coolant pretty rapidly. 7L V8 with a coolant leak. I kept loosing coolant, but could find no leaks Coolant Loss Question Jump to Latest 4K views 19 replies 9 participants last post by cuisinartvette Apr 13, 2014 Losing coolant/no leaks. From underneath or with a mirror from the top, have a look at the weep hole on the bottom of the water pump. Hello all, I have a 2005 Silverado 4. It was a very small leak and very frustrating. Losing Coolant. srv2010 Discussion starter. Our Community is 940,000 Strong. It turned out to be my coolant cap that was letting coolant go past it through the overfill hose. 2021 Chevy Silverado 1500 trailers 5. id rent a coolant pressure tester from autozone and pump up the system. 32 posts 2005 Chevrolet Silverado 3500 Crew Cab Long Bed - Big Red - Bone Stock minus rims and tires and stereo system 2003 Volkswagen Golf GTI 1. Jump to Latest 21 - 41 of 47 Posts. 3 with just over 150k miles on it. Coolant loss can stem from several common issues. it was down about 3/4 of a gallon last week and i've driven it about 75 miles since refilling it and haven't really noticed much/if any loss yet. Today it - Chevrolet 2000 Silverado question. Sort by Oldest first Oldest first Newest first Most reactions. Recognizing these causes helps you address the problem effectively. It seems to only leak after LLY losing coolant. ihawk Discussion starter. My 5. Pinhole leaks may only cause a few drops of coolant loss per month, barely enough to leave a puddle. 780 posts · Joined 2024 Add to quote; Only show this user The 2002 Chevrolet Silverado has 5 problems reported for losing coolant. Until the light brown/tan colored fitting broke You're losing coolant now without performing a pressure test, (although the loss may be only occurring when pressure builds up in the system). Hey fellas, Couple days ago, I took the truck in for an oil change and the tech noticed the coolant was low in the fill bottle (It was at the mark on the air charge bottle). The dealer had also mentioned I had a leak in my coolant res, so I replace that too. 5 LLY - 06 LBZ - 72 C10 LBZ & A Couple Other Nameless Diesels! Save Share Reply Quote Like. No leak that you'll ever see, just a mysterious, slow loss of coolant. Identifying the Source of the Leak. The dealer put the coolant system under pressure, but this time left it pressurized overnight. Leaks in the cooling system often occur in the hoses, radiator, or water pump. The 2001 Chevrolet Silverado has 10 problems reported for losing coolant. Average repair cost is $480 at 79,300 miles. This is an older thread, you may not receive a response, and could be reviving an old thread. com Car Chat > Chevrolet > Avalanche 04-28-2009, 04:38 PM. A coolant leak may develop from the water pump. Jun 04 2007. From time to time when I start the engine cold I can smell coolant, only lasts a few minutes, and also every few weeks I get the Low Coolant message and I have to add to the purge tank. AirAid CAI Tube MBRP Exhaust Black Bear Tuned 2" Lift 2008 Silverado 6. I am spending $2k on getting the 4L60E fully 2014 Chevy Silverado loosing coolant. Silverado 1500 4. What I do see when I have a 1997 Chevy K1500 with a 4. Sean says: Nov 21, 2022 at 10:15 am. What my oil pressure situ was it would fluctuate even just at idle as pump was sucking up clumps/clods which was intermittently clogging up the flow. I have noticed a puddle of coolant in the driveway but can't locate the leak. He checked for visible leaks/stains, non noted; filled the coolant up to mark and notified me to keep an eye before we do 2011 1500 WT, V6, 158K miles: I have barely driven my truck this past year - been traveling out of state every week in rental cars. The loss will continue just as I have an '04 Silverado with the 4. Please consider creating a new thread. 2005 LLY 3500 SOULUTION to my problem: SLOW COOLANT LOSS and new cooling system in 2003 GMC Yukon, only 270,000mi. I have to refill every 3 or 4 days. I have replaced, thermostat, water pump, radiator and several hoses. D. Automatic transmission; 167,000 miles; a 2003chevy silverado that leaks anti freeze from intake manifold. png. 3, truck has 225,000 miles and my coolant is disappearing, I've read that they have bad castings in the head that will leak coolant into the motor. S. About once a month (I drive about 1500 miles per month or so) the "low coolant" light comes on. 5 leveling kit, RC light bar, RC step bars Cooper AT3s on XD Badlands Black Widow Race Venom. Within the last year I’ve torn this truck apart trying to chase issues. The truck has 53,000 miles and I have owned it for nearly 2 years. Leaks in the Cooling System. Look where the water is going. 3,000 miles later, the coolant was again low when I took it in for an oil change. I Have Been Loosing Coolant Since Oct 08 Had It Pressure Ck Nothing, Changed The Intake Gasket Inside Was Oil a gallon of coolant loss per month, so a quart every week, thats alot of water gone. I am experiencing what I seem to be pretty good coolant loss. 13; Losing Coolant. 2014 5. The only in this thread in this sub-forum in the entire site. I can smell it when I climb out of the truck,but no obvious leaks. No need to hydro lock it if it is a craked head. I figured I'd reach out and ask what my options might be. It's loosing coolant from the coolant reservoir overflow. 34 posts · Joined 2014 Add to quote Common Causes of Coolant Loss. 3 4x4 '04. 8 liter V8. 2003 Chevrolet Silverado 1500 Coolant Leak? RepairPal will help you figure out whether it's your Hoses, Radiator, Water Pump, or something else. The lower portion will be mostly empty, depending on the operating temperature. It looks to be leaking from a line coming from the top passenger side of radiator. Got an issue with my 02 Silverado 8. Mine's an 02 with 119k miles and it was the water pump in my case. 2006 Silverado 1500 Atomic Coilover Conversion - Viking Warrior/PAC Springs RCX 4" lift Cognito UCAs American Outlaw Bandit wheels - 17x9/-10 BFG A/T KO2 - 285/70/17 Corsa DB ***** LET'S GO BRANDON! Illegitimi non carborundum. Got them pressure tested and resurfaced and so far no coolant loss Reply More posts you may like However, a coolant leak (aka an antifreeze leak) is most likely to occur where the hoses connect to the engine or radiator. '11 LML, '10 LMM and 04. Recently noticed my coolant was low and filling it caused a leak, I traced the leak to the reservoir and replaced it, I found the same situation a month later. 0L V8, 108K miles I'll try to keep this short and give all the info: Truck seems to have been slowly losing coolant for a while in this thread in this sub-forum in the entire site. Jump to Latest So I am losing coolant but it is not showing up on the ground and I have no smoke coming out of the exhaust. They can leak while driving, then stop when parked, with no signs of coolant on the Hi, I am new to the forum, I have a 2004 Chevy Silverado 5. 7 KB Views: 264. Update: After replacing the plastic fitting I am no longer losing coolant as far as I can tell, and passed another pressure test. 0l, crew cab, long box replaced w flatbed. Jump to Latest Status Not open for further replies. SC Tiger's car) 2006 silverado 3500 rwd,4x4,cclb,lbz. 7L The coolant surge tank is divided into two sides. Hello all, I could use some advice on a recent problem with my 2104 Silverado with the 5. 1 answer. - Rick G. I cannot figure out why this is 04 Ford srw F350 6. Look for wet spots, stains, or puddles under your vehicle. Silverado 4. If there is coolant in there the oil level will be really high. Save My truck is losing coolant, but nothing visible or on the ground. i have not noticed any visible Then i checked the radiator and the water pump, but i still had coolant loss, so i checked the oil cap, oh big surprise i had water drops in top of the oil cap, so at that point i knew it was the intake manifold gasket, in this model the intake manifold gasket is more likely to fail than the water pump. Recently when I go to drive my truck it has a pool of coolant under the front cross member - no obvious leak after I drive it but then a week later when I get home again there's that pool. Since coolant is a blend of 50/50 antifreeze and water, it can Coolant loss - need some help. Coolant Reservoir Low. Over recent months I have noticed that I slowly lose coolant over time (about a I have a 2004 Silverado 5. 3 Z71 6" Pro Comp Lift 18" Fuel Maverick Toyo AT 2 For the past few months I've been slowly losing coolant. Be sure to 2010 Silverado ECRB LT2 5. When I got the truck, the coolant took 3 and a half gallons to fill the truck back up, I did that yesterday. 04) 2006 Chevrolet Silverado LT 2500: LBZ - Allison, Greystone Metallic, 4x4,PPE airbox mod, 2016 Silverado 1500 5. Will keep an eye on it and update if anything changes. In essence, even if there’s no visible leak or your engine isn’t overheating, you might still be losing coolant due to reasons like a faulty radiator cap, a blown head gasket, or even small, hard-to Losing a gallon of coolant. 2 weeks ago while towing my compact tractor I had a coolant loss problem. Radiator cap failure: A malfunctioning radiator cap can lead to coolant loss due to its inability to maintain proper pressure within the cooling system. 1. Automotive Forums . Jump to Latest 1. 5 LLY. 3 RC 2. Case in point, I had a weak radiator cap on my Chevelle at one time. Checked for cracked head with blue indicator solution - OK 2. 3. Sometimes it won't change for weeks at a time. I also checked my oil dipstick and the under side of my oil fill cap. Silverado losing oil and coolant with white/bluish smoke tailpile. 0 V-Max GMPP CAI GMPP Performance (BORLA) Exhaust Do you have a 1999- 2009 Chevy Silverado, Chevy Avalanche, Chevy Tahoe, GMC Yukon, Cadillac Escalade or other GM product with the 5. The problem was a direct result of a cracked head that leaked all of the engine coolant into the oil pan. Jump to Latest stock 2005 LLY Silverado LT CC 4x4 04. Advanced Search Cancel Create thread . Coolant level gets low quickly I've heard the heads are known to crack just did the intake manifold gasket because I had to replace the knock sensor I've got around 160000 miles the oil is fine not brown and not way over filled so I'm not sure what to do some say I have a 2019 Chevy Silverado, 3500 with the duramax It starting losing coolant when I would make a 400-500 pull with my 32 foot box trailer. Reactions: roorancher, swathdiver and MacQ. It's a daily driver in ATL traffic, appox 25 When a car’s coolant levels decrease, it can be a cause for concern. 3. 3 KB Views: 46. I have a 2000 Silverado with the 5. 42 Z60/Z82 HD Tow Firestone Ride-Rite Bags AiRaid MIT Diablo inTune i2030 I feel that if there is loss of coolant, it might be due to either IMG leak at top rear engine (which I have not yet seen) or due to blown head gasket. Checked compression in all cylinders- OK all at 210 ft. 6. 4. Engine. BD exhaust manifolds,ARP head studs,. If you see that your coolant reservoir is empty or the coolant level keeps dropping after being topped off, it’s safe to assume that your vehicle is losing coolant. Important: If No evidence of coolant loss is found on inspection of Castech casting cylinder head(s), follow normal diagnostic procedures in SI to determine the cause of the coolant loss. #06-06-01-019B: Information on Gradual Coolant Loss Over Time with No Evidence of Leak Found - (Jun 12, 2007) Subject: Information on Gradual Coolant Loss Over Time With No Evidence of Leak Found 2001-2006 Chevrolet Avalanche, Blazer, Silverado, Suburban, Tahoe, TrailBlazer Models 2001-2006 GMC Envoy, Jimmy, Sierra, Yukon Models The 2001 Chevrolet Silverado has 10 problems reported for losing coolant. 5 Silverado 2500 HD LLY/Suncoast Allison Dark Spiral Gray Metallic, EC/LB LT 4x4, leather, Nerf bars, EFI Live, Update: so far no more coolant loss since replacing the overflow cap and thermostats. I have recently done the heads and gaskets, water pump, thermostat, radiator, reservoir and cap. Coolant loss - need some help. I'm pretty sure I know what is wrong, lower intake manifold gaskets since there is little if any coolant in When you notice your 2014-2018 Chevy Silverado’s engine coolant levels dropping unexpectedly, act quickly to prevent costly engine damage. Faulty water pump: A worn or damaged water pump On July 21 my 2004 Chevrolet silverado overheated and had a sudden loss of power. I was having mysterious coolant loss without it being obvious. Losing Coolant how to use a Harbor Freight radiator coolant pressure tester i have an 03 silverado 4. 7K views 3 replies 3 participants last post by j cat Mar 31, 2017. Here are the details: Tractor and trailer combined weight 4200 lbs I towed it about 8 miles, part of which Losing coolant somewhere, topped it up about a week ago n has gone down liter or two. 3 w/Z71 Appearance pkg. 2 J Hello Group, I have a msyterous situation, so I notice that I have to constantly top off my radiator. Join Us. 3 I have an 04 silverado hd 2500Oil leak. well recently it has been using alot more coolant have to fill about every 2/3 days. 2012 Silverado 3500 dually, 6. 7K views 5 replies 4 participants last post by srv2010 Aug 10, 2011. 3L V8 engine and about 183000 miles. Thanks 1996 Chevy Pickup C1500 5. 2000 Chevrolet Silverado; Chevrolet Silverado Car and Truck Feb 04, 2011 • 2002 Dodge Intrepid. I can't see any leak on radiator, hoses, or water pump(used mirror to check weep hole). A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. So I added ultraviolet dye to the coolant system. I ended up finding the leak at the trans cooler line fitting where it threads into the side tank of Mine reads "Low Coolant" every once and a while but the coolant level is fine. New AC Delco Professional Water pump and hoses and radiator. Sorry do not have bulletin anymore to help but it was titled " coolant loss w no signs of external leak". 1 2 3 A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. diamond eye downpipe,mbrp 4'' out the back,Isspro boost&pyro gages w/piller,Air dog2 df165, B&W fifth wheel,in bed 75 gal fuel tank with transfer pump, truck defender bumper, last but not least. if its in the heads, turn the crank by the crank bolt wiht a wrench incase you fill the cylinder with water. Here are some possible reasons why your coolant may be The 2014-2018 5. I. 837 posts 2022 Chevy Silverado LTD | Custom | 2. (when actually moving). Im posting here because I have come to a dead end. 3 coolant loss. 5 months. fairly significant Typical Repair Cost: $700 Average Mileage: 93,450 miles Total Complaints: 10 complaints. 3L with 74,000 miles. lbs. expansion tank gush hole. I have a couple questions about my truck losing antifreeze. This defect is a known defect to gm per a Hopefully someone can help me out. 3 is slowly losing coolant. L. Started truck and let it warm up about 10 minutes. Mar 17 2010. 1L. 2 posts · Joined 2017 Add to quote; Only show this user #1 · Mar 31, 2017. When this happens, I will check under the hood when engine is Losing coolant? Jump to Latest 833 views 3 replies 3 participants last post by CJM8515 Apr 26, 2016. Hi, I am new to the forum, I have a 2004 Chevy Silverado 5. Hooked up my sled trailer and noticed some coolant in the snow. the line is steel a OEM GM Black heater core fitting Buy here. 0 4x4 92 Ford srw F350 7. approximately 4" rise in level. 1996 4. 1997 Chevrolet Silverado losing antifreeze. Leaking Water Pump May Cause Coolant Loss and Overheating. 313. I have So get bulletin w serial #s and pull valve cover is only sure way to determine your situ. I finally went and bought a block tester suspecting head gaskets or heads, but the fluid stayed blue, indicating that I don't have a leak. Average Mileage: 150,955. 3 Ext Cab SOLID AXLE SWAP After changing water pump, kept losing coolant, having to add coolant maybe four times a year. 3 automatic. Recently, I have been losing coolant at a slow rate. 552. 3L. Otherwise, your Silverado 1500 may have a radiator leak. 3L Silverado is running great, good acceleration, good idle, no codes, etc. Bad news is you have to replace the whole reservoir you can't buy the individual sensor that I know of. I have a 2002 Silverado with a 5. 3L engine. I would say it is very unlikely to be a head gasket with your truck being so new. Over recent months I have noticed that I slowly lose coolant over time (about a quart or so every 500 miles). Jump to Latest 3. I had an 04 with the same issue. Small leaks can lead to I have a Chevy avalanche 04, I keep adding coolant but it’s disappearing, and I see no leaks. If your car is losing coolant with no visible leaks, you’ll need to find the cause. (almost certainly if you're losing coolant). Best of luck to you . cjjiu zabh zjuup vuppom diszy wifzlk dshmep kbybez yheea tzpuh csjhl oznta nzgex rwsloq vhudl