# \#coolant **URL:** https://community.cartalk.com/tag/coolant/196.md [Latest](https://community.cartalk.com/latest.md) · [Categories](https://community.cartalk.com/categories.md) · [Tags](https://community.cartalk.com/tags.md) --- ## [Can a cooling system pressure test CAUSE problems?](https://community.cartalk.com/t/can-a-cooling-system-pressure-test-cause-problems/204509)
**Author:** [@GorehamJ](https://community.cartalk.com/u/GorehamJ)\ **Replies:** 23\ **Last updated:** [November 29, 2025, 6:17am UTC](https://community.cartalk.com/t/can-a-cooling-system-pressure-test-cause-problems/204509 "2025-11-29T06:17:32Z")
Hi CTC folks. I have a question about pressure-testing a cooling system. My 23 Bronco Sport Badlands has a known issue. The water pumps fail. Anyone with a Bronco Sport lives in fear it will strike them. Some owners have… --- ## [2008 3.8 Town & Country coolant leak](https://community.cartalk.com/t/2008-3-8-town-country-coolant-leak/194624)
**Author:** [@SpudMuffin](https://community.cartalk.com/u/SpudMuffin)\ **Replies:** 8\ **Last updated:** [March 28, 2024, 2:16pm UTC](https://community.cartalk.com/t/2008-3-8-town-country-coolant-leak/194624 "2024-03-28T14:16:32Z")
It’s still snowing up here in north MN, so the idea of working on the underside of the engine while everything drips in my face was not exciting. I postponed by using 3 gallons of AF for the last 2 weeks till I could get… --- ## [Buick Century Coolant Leak](https://community.cartalk.com/t/buick-century-coolant-leak/194213)
**Author:** [@jsd123](https://community.cartalk.com/u/jsd123)\ **Replies:** 11\ **Last updated:** [January 22, 2024, 11:16pm UTC](https://community.cartalk.com/t/buick-century-coolant-leak/194213 "2024-01-22T23:16:51Z")
I’ve got a ‘98 Buick Century with 142,000 miles. This is the 3100 v6 engine. I’ve had minor coolant leaks for the last couple years, managed with topping off now and then. Recently replaced the radiator, only to then di… --- ## [Radiator Leak Fix](https://community.cartalk.com/t/radiator-leak-fix/189303)
**Author:** [@bobby\_yan](https://community.cartalk.com/u/bobby_yan)\ **Replies:** 23\ **Last updated:** [December 17, 2023, 10:04pm UTC](https://community.cartalk.com/t/radiator-leak-fix/189303 "2023-12-17T22:04:01Z")
2002 Camry LE, 4 Cylinder. My radiator leaks 1-2 drops per second. I’m not exactly sure about the leak position, but it seems to be somewhere between the plastic tank and the metal radiator core, and it’s not likely the … --- ## [Car overheating, full coolant, and dying battery](https://community.cartalk.com/t/car-overheating-full-coolant-and-dying-battery/183366)
**Author:** [@Alexdejay](https://community.cartalk.com/u/Alexdejay)\ **Replies:** 21\ **Last updated:** [October 14, 2023, 9:33pm UTC](https://community.cartalk.com/t/car-overheating-full-coolant-and-dying-battery/183366 "2023-10-14T21:33:22Z")
I have a 2007 Hyundai Sonota at 72,000 miles. I tried to start my car and it wouldn’t fully roll over. Check engine light came on too but my code reader didn’t pick anything up. Everything electrical still worked includi… --- ## [Fluid exchanges on 16-year old car - Ill-advised?](https://community.cartalk.com/t/fluid-exchanges-on-16-year-old-car-ill-advised/191398)
**Author:** [@apagodz](https://community.cartalk.com/u/apagodz)\ **Replies:** 59\ **Last updated:** [July 13, 2023, 2:20am UTC](https://community.cartalk.com/t/fluid-exchanges-on-16-year-old-car-ill-advised/191398 "2023-07-13T02:20:56Z")
2007 Chevy Malibu, Automatic Transmission, 6-cylinder, 3.5l, 40k miles Hey, so this is kind of a two-for-one, but they share a common thread, so hopefully this is acceptable, I felt it was better than two separate posts… --- ## [2009 MINI Cooper - Can I mix coolant?](https://community.cartalk.com/t/2009-mini-cooper-can-i-mix-coolant/190541)
**Author:** [@Ollie2003](https://community.cartalk.com/u/Ollie2003)\ **Replies:** 5\ **Last updated:** [May 13, 2023, 9:18pm UTC](https://community.cartalk.com/t/2009-mini-cooper-can-i-mix-coolant/190541 "2023-05-13T21:18:40Z")
Can I mix coolant colours from red to blue when topping up my coolant tank? --- ## [2004 GMC Yukon - Wrong antifreeze](https://community.cartalk.com/t/2004-gmc-yukon-wrong-antifreeze/188014)
**Author:** [@Charper463](https://community.cartalk.com/u/Charper463)\ **Replies:** 1\ **Last updated:** [December 19, 2022, 5:41pm UTC](https://community.cartalk.com/t/2004-gmc-yukon-wrong-antifreeze/188014 "2022-12-19T17:41:52Z")
I had green antifreeze in my 2004 gmc yukon slt I accidentally put yellow in it what will happen --- ## [Radiator FULL, but reservoir nearly EMPTY after adding coolant](https://community.cartalk.com/t/radiator-full-but-reservoir-nearly-empty-after-adding-coolant/187859)
**Author:** [@JayZeeBee](https://community.cartalk.com/u/JayZeeBee)\ **Replies:** 9\ **Last updated:** [December 13, 2022, 2:00am UTC](https://community.cartalk.com/t/radiator-full-but-reservoir-nearly-empty-after-adding-coolant/187859 "2022-12-13T02:00:49Z")
I noticed recently the coolant reservoir was nearly empty in my 2008 Civic. Checked radiator, and could just see the coolant at the bottom of the neck, which I understand to be normal. Temp gauge reading normal. Thought… --- ## [No One Ive Talked To Can Figure This Out ! 2.7 V6](https://community.cartalk.com/t/no-one-ive-talked-to-can-figure-this-out-2-7-v6/186834)
**Author:** [@crivers1994\_182590](https://community.cartalk.com/u/crivers1994_182590)\ **Replies:** 43\ **Last updated:** [October 18, 2022, 12:54pm UTC](https://community.cartalk.com/t/no-one-ive-talked-to-can-figure-this-out-2-7-v6/186834 "2022-10-18T12:54:12Z")
hello there, here is some background before my question. for those who take the time to answer this in any way, I cant begin to thank you enough! If you have any ideas that can help out with getting this bucket on the ro… --- ## [1995 Buick Century - Overheating, ECT and Fan Issues (very confused)](https://community.cartalk.com/t/1995-buick-century-overheating-ect-and-fan-issues-very-confused/186797)
**Author:** [@valina1106\_182572](https://community.cartalk.com/u/valina1106_182572)\ **Replies:** 10\ **Last updated:** [October 10, 2022, 3:40pm UTC](https://community.cartalk.com/t/1995-buick-century-overheating-ect-and-fan-issues-very-confused/186797 "2022-10-10T15:40:09Z")
Hey guys. I have a 1995 Buick Century V6 3.1L 150k miles. Lately I’ve noticed my temperature gauge needle has been creeping way above the halfway-point, and the fans won’t come on to mitigate the problem. I’m worried it… --- ## [Antifreeze leak from conditioner(steam from a/c)](https://community.cartalk.com/t/antifreeze-leak-from-conditioner-steam-from-a-c/185393)
**Author:** [@NotGrendizer](https://community.cartalk.com/u/NotGrendizer)\ **Replies:** 16\ **Last updated:** [July 24, 2022, 6:07am UTC](https://community.cartalk.com/t/antifreeze-leak-from-conditioner-steam-from-a-c/185393 "2022-07-24T06:07:10Z")
Hi,First was stram from a/c and then heat indicator went to top and started leaking radiator antifreeze from conditioner . I ride 100+km and it leaked 3+Liter antifreeze.Any suggestions? is it normal? --- ## [2000 GMC Safari Brown gritty Coolant & Oil leak](https://community.cartalk.com/t/2000-gmc-safari-brown-gritty-coolant-oil-leak/183733)
**Author:** [@nophilangie](https://community.cartalk.com/u/nophilangie)\ **Replies:** 20\ **Last updated:** [April 23, 2022, 10:24pm UTC](https://community.cartalk.com/t/2000-gmc-safari-brown-gritty-coolant-oil-leak/183733 "2022-04-23T22:24:05Z")
I am looking into buying a used van. In this market its hard to find anything in my budget ($3000) thats not a rusted out bucket with a million miles on it. Anyway, I found a 2000 GMC Safari with a vortec 4.3 motor. I am… --- ## [Intermittent heat with no temperature control?](https://community.cartalk.com/t/intermittent-heat-with-no-temperature-control/180175)
**Author:** [@elisa7joy](https://community.cartalk.com/u/elisa7joy)\ **Replies:** 5\ **Last updated:** [October 25, 2021, 11:49pm UTC](https://community.cartalk.com/t/intermittent-heat-with-no-temperature-control/180175 "2021-10-25T23:49:17Z")
First and foremost let me say to anyone who might consider buying this vehicle. Don’t. It’s been a giant pain. The way this vehicle is designed is odd and makes easy things difficult. Anyhow, I bought this van used in t… --- ## [2022 Chevrolet Silverado 1500 - Coolant quandry](https://community.cartalk.com/t/2022-chevrolet-silverado-1500-coolant-quandry/178070)
**Author:** [@Donna32](https://community.cartalk.com/u/Donna32)\ **Replies:** 8\ **Last updated:** [July 17, 2021, 3:28pm UTC](https://community.cartalk.com/t/2022-chevrolet-silverado-1500-coolant-quandry/178070 "2021-07-17T15:28:08Z")
Check oil,noticed pink coolant level low.topped off with less than 8to10 oz Prestone 50/50. (Neon yellow) drove 30 miles in 89° weather.No immediate prob.ac cooling well.Should I have system flushed in morning?? Will… --- ## [Accidentally Poured Transmission Fluid into the Coolant](https://community.cartalk.com/t/accidentally-poured-transmission-fluid-into-the-coolant/54807)
**Author:** [@yield\_me](https://community.cartalk.com/u/yield_me)\ **Replies:** 4\ **Last updated:** [May 20, 2021, 3:03pm UTC](https://community.cartalk.com/t/accidentally-poured-transmission-fluid-into-the-coolant/54807 "2021-05-20T15:03:21Z")
My brother has accidentally poured a quart of transmission fluid int his coolant reservoir and now the car is overheating. I am wondering if flushing the radiator would do the trick or if any other major problems can inc… --- ## [A Real Interesting Overheating Problem](https://community.cartalk.com/t/a-real-interesting-overheating-problem/52195)
**Author:** [@Duke1971](https://community.cartalk.com/u/Duke1971)\ **Replies:** 22\ **Last updated:** [May 7, 2021, 3:55pm UTC](https://community.cartalk.com/t/a-real-interesting-overheating-problem/52195 "2021-05-07T15:55:20Z")
My 2003 F-150 4.6L spikes into max overheating on the gauge after about 4 miles. It then recovers into the normal range and does not do it again (until you start it after completely cool). I'm now on my third thermosta… --- ## [2017 Ford Focus ST - Overheat light](https://community.cartalk.com/t/2017-ford-focus-st-overheat-light/176617)
**Author:** [@DianeTwist](https://community.cartalk.com/u/DianeTwist)\ **Replies:** 4\ **Last updated:** [May 7, 2021, 2:06pm UTC](https://community.cartalk.com/t/2017-ford-focus-st-overheat-light/176617 "2021-05-07T14:06:39Z")
When car is sitting still and running after a few minutes the overheat light comes on and states car is overheated but you can turn the car off and back on and the warning light goes off. What is causing this? --- ## [Radiator dumping coolant into reservoir, overheating](https://community.cartalk.com/t/radiator-dumping-coolant-into-reservoir-overheating/172619)
**Author:** [@Cameron-24](https://community.cartalk.com/u/Cameron-24)\ **Replies:** 9\ **Last updated:** [January 29, 2021, 2:30pm UTC](https://community.cartalk.com/t/radiator-dumping-coolant-into-reservoir-overheating/172619 "2021-01-29T14:30:18Z")
2005 Subaru Forester, 175k miles. New radiator, thermostat, radiator cap, and water pump. Radiator is filling with air, reservoir flowing over with the coolant from the radiator, motor runs hot after about 20miles. What’… --- ## [Cooling System Stop Leak hot engine?](https://community.cartalk.com/t/cooling-system-stop-leak-hot-engine/173383)
**Author:** [@jesper921](https://community.cartalk.com/u/jesper921)\ **Replies:** 9\ **Last updated:** [December 19, 2020, 8:53am UTC](https://community.cartalk.com/t/cooling-system-stop-leak-hot-engine/173383 "2020-12-19T08:53:40Z")
Hi there, I have some small leaks in my cooling system, so I ordered the Wynn’s Cooling System Stop Leak product (https://www.wynns.eu/product/cooling-system-stop-leak/). It says on that website I should bring the engine… --- ## [Overheating and coolant leak](https://community.cartalk.com/t/overheating-and-coolant-leak/168310)
**Author:** [@Brittany-1988](https://community.cartalk.com/u/Brittany-1988)\ **Replies:** 8\ **Last updated:** [August 6, 2020, 2:15am UTC](https://community.cartalk.com/t/overheating-and-coolant-leak/168310 "2020-08-06T02:15:37Z")
I have a 1999 Acura TL 3.2L and it’s been overheating and losing coolant from somewhere. The thermostat, radiator cap and radiator hoses have been replaced. I’ve also purchased the temperature control switch which hasn’t… --- ## [Hot day + air conditioning = coolant leak at new overflow cap](https://community.cartalk.com/t/hot-day-air-conditioning-coolant-leak-at-new-overflow-cap/65218)
**Author:** [@mfaerber](https://community.cartalk.com/u/mfaerber)\ **Replies:** 13\ **Last updated:** [July 30, 2020, 3:29pm UTC](https://community.cartalk.com/t/hot-day-air-conditioning-coolant-leak-at-new-overflow-cap/65218 "2020-07-30T15:29:33Z")
98 Ford Taurus... Car overheats and coolant leaks from overflow cap in hot weather, when air conditioning is turned on. Overflow tank and cap is new. Coolant leaks if I've added it up to the fill line. Leaks occur soo… --- ## [Low coolant warning and hot engine](https://community.cartalk.com/t/low-coolant-warning-and-hot-engine/46325)
**Author:** [@kttaylor](https://community.cartalk.com/u/kttaylor)\ **Replies:** 4\ **Last updated:** [July 17, 2020, 7:23pm UTC](https://community.cartalk.com/t/low-coolant-warning-and-hot-engine/46325 "2020-07-17T19:23:10Z")
So the engine block, the water pump, thermostat, and pcm have been replaced. Works fine except: at high speed engine temperature is good. At low speed or idle it heats up rapidly to just above half-way and stabilizes. Th… --- ## [Possible coolant leak?](https://community.cartalk.com/t/possible-coolant-leak/164710)
**Author:** [@Olesyagordeyeva](https://community.cartalk.com/u/Olesyagordeyeva)\ **Replies:** 2\ **Last updated:** [May 23, 2020, 2:33am UTC](https://community.cartalk.com/t/possible-coolant-leak/164710 "2020-05-23T02:33:34Z")
Hey guys! I’ve been having a couple of issues with my coolant. My coolant light has been going off and it seems to be over heating. The first time i filled it up, it seemed fine. Only a few months have passed by and the… --- ## [Car puking coolant](https://community.cartalk.com/t/car-puking-coolant/163780)
**Author:** [@Theswedking](https://community.cartalk.com/u/Theswedking)\ **Replies:** 5\ **Last updated:** [May 3, 2020, 11:06pm UTC](https://community.cartalk.com/t/car-puking-coolant/163780 "2020-05-03T23:06:49Z")
I have a 2005 Chevy Impala with the series 2 3800/3.8 and it is leaking coolant bad. It has been sitting for a few days as I haven’t bought and replaced the water pump yet. There is a large puddle of coolant on the groun… --- ## [Ford Explorer 2002 Leaking? Overheating? not sure what's going on](https://community.cartalk.com/t/ford-explorer-2002-leaking-overheating-not-sure-whats-going-on/163217)
**Author:** [@dwr17\_166645](https://community.cartalk.com/u/dwr17_166645)\ **Replies:** 2\ **Last updated:** [April 22, 2020, 1:10am UTC](https://community.cartalk.com/t/ford-explorer-2002-leaking-overheating-not-sure-whats-going-on/163217 "2020-04-22T01:10:22Z")
Hey all, was driving back from school yesterday and noticed a problem. When I would come to a stop, my temperature gauge would shoot up to almost the max and the light would come on. As I started driving, the temperature… --- ## [Antifreeze leaking from front of engine](https://community.cartalk.com/t/antifreeze-leaking-from-front-of-engine/49172)
**Author:** [@denny9](https://community.cartalk.com/u/denny9)\ **Replies:** 11\ **Last updated:** [May 22, 2010, 10:46pm UTC](https://community.cartalk.com/t/antifreeze-leaking-from-front-of-engine/49172 "2010-05-22T22:46:36Z")
99 Chevy Suburban. I had a coolant leak from what I thought was a bad water pump, so I replaced it. I still have a leak and appears to be coming from the cover behind the water pump but its hard to tell. I don't see any … --- ## [Head gasket fail?](https://community.cartalk.com/t/head-gasket-fail/155927)
**Author:** [@Tlrbowman\_148803](https://community.cartalk.com/u/Tlrbowman_148803)\ **Replies:** 7\ **Last updated:** [January 5, 2020, 11:28pm UTC](https://community.cartalk.com/t/head-gasket-fail/155927 "2020-01-05T23:28:24Z")
2011 Ford Fusion 2.5l I5. Just changed oil. Full synthetic, with 1 quart of lucas oil stabilizer. Went about 200 miles over before changing. It looked weird to me so just posting to see if anyone else could tell me wha… --- ## [99 v6 Mustang with Oil in the Coolant](https://community.cartalk.com/t/99-v6-mustang-with-oil-in-the-coolant/107749)
**Author:** [@danielalexlucas](https://community.cartalk.com/u/danielalexlucas)\ **Replies:** 18\ **Last updated:** [October 12, 2019, 6:48am UTC](https://community.cartalk.com/t/99-v6-mustang-with-oil-in-the-coolant/107749 "2019-10-12T06:48:05Z")
I’ve got a '99 v6 Stang with 252k miles on it. I recently went on a small road trip, about 5 hours of driving total, and on the way back home I started to smell oil for about a minute, but then the smell went away. I did… --- ## [Coolant not returning to radiator from expansion tank](https://community.cartalk.com/t/coolant-not-returning-to-radiator-from-expansion-tank/90391)
**Author:** [@Jesse\_James1](https://community.cartalk.com/u/Jesse_James1)\ **Replies:** 9\ **Last updated:** [September 27, 2019, 1:29am UTC](https://community.cartalk.com/t/coolant-not-returning-to-radiator-from-expansion-tank/90391 "2019-09-27T01:29:05Z")
Last week during a hot/long day on the road, my engine temp gauge started fluctuating between 1/2 and almost 7/8 on the gauge. The weird thing was that it was fairly stable most of the time, but every 10 minutes or so, … [Next page](https://community.cartalk.com/tag/coolant/196.md?match_all_tags=true&page=1&tags%5B%5D=coolant)