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Post by genesis273 on Nov 26, 2023 18:37:37 GMT -5
The heat in my wife's 2008 Chrysler Aspen (5.7 Hemi) keeps going in and out. One minute it's fine, the next, cool air, and back and forth.
Heater core issue or something else?
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Post by greghopper on Nov 26, 2023 18:43:49 GMT -5
Check the level of antifreeze make sure it’s full.
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Post by deadeer on Nov 26, 2023 19:04:21 GMT -5
Check the level of antifreeze make sure it’s full. People would be shocked how many times this is the issue! |
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Post by michaelc on Nov 26, 2023 19:58:04 GMT -5
Have you checked on a Dodge forum yet to see other people's solutions. It's free, and you can also see what others have done to correct the problem/issue. I'd almost say it's the head/control unit, but others might have a different answer
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Post by michaelc on Nov 26, 2023 20:00:33 GMT -5
Have you checked on a Dodge forum yet to see other people's solutions. It's free, and you can also see what others have done to correct the problem/issue. I'd almost say it's the head/control unit, but others might have a different answer It could be as simple as the Thermostat might need to be replaced. Sounds like it could be trying to stick a little bit |
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Post by michaelc on Nov 26, 2023 20:10:02 GMT -5
Since it's a Hemi, have you pulled the oil dipstick yet? I know the Hemis are notorious for head gasket issues and that COULD be the problem. The only sure way to know is put a pressure gauge on the radiator and put about 40-50 PSI of pressure to it and if it leaks down, check the hose connections 1st. If no signs, then change the thermostat. If that doesn't fix it, get ready for head gaskets. You might as well have the block deck planned down and the heads as well since both should be aluminum
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Post by deadeer on Nov 26, 2023 20:29:39 GMT -5
There are several things to check and do before condemning a head gasket! Think positive first!
As said, low coolant level, verify temp gauge is accurate and t-stat working, clogged heater core, collapsed hose, sticking heater control valve or damper door, etc. All these are very real possibilities.
Good luck.
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Post by duff on Nov 26, 2023 21:29:30 GMT -5
Did you unplug it and let it reset for 10 seconds? My mechanic has me on the monthly blinker fluid program. $100 a month and he checks it, tops it off, changes filter every 4th check and an annual flush. My heaters work great.
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Post by esshup on Nov 26, 2023 23:07:11 GMT -5
On my VW, part of the service was change the anti-freeze every 2 years..........
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Post by genesis273 on Nov 27, 2023 7:36:44 GMT -5
Did you unplug it and let it reset for 10 seconds? My mechanic has me on the monthly blinker fluid program. $100 a month and he checks it, tops it off, changes filter every 4th check and an annual flush. My heaters work great. For a $100 a month, he should rotate the air in your tires too. At least every other month. |
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Post by greghopper on Nov 27, 2023 7:44:58 GMT -5
Did you unplug it and let it reset for 10 seconds? My mechanic has me on the monthly blinker fluid program. $100 a month and he checks it, tops it off, changes filter every 4th check and an annual flush. My heaters work great. For a $100 a month, he should rotate the air in your tires too. At least every other month. I bet he has winter air in the tires now….. |
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Post by greghopper on Nov 27, 2023 8:45:13 GMT -5
On my VW, part of the service was change the anti-freeze every 2 years.......... Bet they will change your brake fluid also... wasted money IMO |
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Post by duff on Nov 27, 2023 11:26:40 GMT -5
Did you unplug it and let it reset for 10 seconds? My mechanic has me on the monthly blinker fluid program. $100 a month and he checks it, tops it off, changes filter every 4th check and an annual flush. My heaters work great. For a $100 a month, he should rotate the air in your tires too. At least every other month. That is the deluxe maintenance package. Comes with synthetic blinker fluid too. I had to draw the line someplace |
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Post by genesis273 on Nov 27, 2023 12:29:43 GMT -5
For a $100 a month, he should rotate the air in your tires too. At least every other month. That is the deluxe maintenance package. Comes with synthetic blinker fluid too. I had to draw the line someplace I understand. Bidenomics in all... |
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Post by genesis273 on Nov 27, 2023 20:37:40 GMT -5
Well, it was low on antifreeze. And I mean LOOOW! I put 1 and half gallons in. I gotta keep a close eye on it to make sure it's not leaking.
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Post by esshup on Nov 27, 2023 23:25:28 GMT -5
On my VW, part of the service was change the anti-freeze every 2 years.......... Bet they will change your brake fluid also... wasted money IMO Everybody is allowed their opinion, but since brake fluid is hygroscopic, I never saw any rust in the brake fluid in the VW. They make two colors of fluid so you know when the old stuff is out of the system. |
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Post by greghopper on Nov 28, 2023 6:00:14 GMT -5
Well, it was low on antifreeze. And I mean LOOOW! I put 1 and half gallons in. I gotta keep a close eye on it to make sure it's not leaking. Yeah watch the level it’s going somewhere probably a small leak |
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Post by welder on Nov 28, 2023 9:04:10 GMT -5
Well, it was low on antifreeze. And I mean LOOOW! I put 1 and half gallons in. I gotta keep a close eye on it to make sure it's not leaking. Yeah watch the level it’s going somewhere probably a small leak Pull out the dipstick and check it right now. |
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Post by greghopper on Nov 28, 2023 9:29:13 GMT -5
Yeah watch the level it’s going somewhere probably a small leak Pull out the dipstick and check it right now. Hopefully that was already done especially adding that much.... unless it's going out the tail pipe! |
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Post by deadeer on Nov 28, 2023 9:34:05 GMT -5
It could have been low for awhile, and just on the verge of the heat issue. Did you have any other work done where the coolant was removed and maybe had an air pocket in the system?
A pressure test is cheap and easy to verify a leak. It will push out coolant to visually show an external leak. There are also tests to show an internal leak, via mixing with the oil, or being burned out thru the exhaust as said.
Hopefully just a small external seep somewhere you didnt notice and easily repaired. Fingers crossed for you!
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