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Jeep Grand Cherokee A/C Heating Ventilation

407 messages,  Last post on Feb 21, 2010 at 5:57 AM

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What is this discussion about? Jeep Grand Cherokee, Heating / Cooling, SUV

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#53 of 407 Re: 2001 Jeep Cherokee AC/Electrical Problem? [wesbuck4] by tuggajb Aug 08, 2007 (6:36 pm)
Replying to: wesbuck4 (Aug 07, 2007 5:21 pm) when you turn on ac send signel th senser and throt motor so will idel faster if senser is bad will not send good sig to computer goofs up timing    fuel delivery    idle speed    ac clutch function    wide open tho fuel delivery    etc all controled by pcm Replies to this message: wesbuck4 (Aug 13, 2007 5:32 pm) tuggajb (Aug 14, 2007 5:10 pm)
#54 of 407 Re: 2001 Jeep Cherokee AC/Electrical Problem? [tuggajb] by wesbuck4 Aug 13, 2007 (5:32 pm)
Replying to: tuggajb (Aug 08, 2007 6:36 pm) Yesterday I replaced the TPS and recharged the AC. My Car ran great yesterday, no hiccups, and the AC ran fine. I drove to work this morning (about 40 miles) and car ran great. On my way home though, the Jeep flickered off, like it had no electrical signal, then came back on. Then my voltmeter went all the way to the top (it's always in the middle) my check gauges light came on, and my ABS light came on.   I stopped the car and turned it off. When I went to restart it, I got nothing. No turn or anything. So I unplugged the battery to reset the computer, and the car started right back up, and I had no problems the rest of the way home, or the few other trips I've made since.   Obviously I have an electrical problem, unless the computer was still trying to read the new sensor, and had a quick malfunction. I took my battery to Autozone and had it tested, and it tested fine.   Is this common after replacing a throttle position sensor? Replies to this message: tuggajb (Aug 14, 2007 5:10 pm)
#55 of 407 Re: 2001 Jeep Cherokee AC/Electrical Problem? [wesbuck4] by tuggajb Aug 14, 2007 (5:10 pm)
Replying to: wesbuck4 (Aug 13, 2007 5:32 pm) maybe when you replaced the tps you did not get the batt cables tight make sure the post are clean how old is the batt if two or three years old i have foond that i change when that old heat in az does them in will start and then let you down jump and will start and start then let you down when you realey need it
#56 of 407 96 Jeep Cherokee AC problem by unekgal Aug 01, 2007 (1:35 am)
#57 of 407 96 Jeep Cherokee AC problem by unekgal Jul 31, 2007 (3:45 pm)
OK, so my grandpa is an AC man (for homes) and is pretty good with these things. We detected a leak in my condenser coil, so I recently installed a new one, although had to cut some corners with $$ because it was expensive. We didn't replace the hoses because they looked like-new, but didn't know how to connect the 2 ends, so we attempted some type of JB weld which was a bad idea because it could not hold that much pressure.   What do I use? The parts can't be welded can they? saudered? Any advise would be appreciated.   While on that subject, I was looking to see how others fixed their AC and noticed something about an evaporator coil which is under the dash somewhere (passenger side floor).   I have no idea where this is, but a few months ago (and no my AC was not working prior to this), it hasn't since I bought it in 2000. Anyway, a few months ago, I noticed some oily substance on my rubber floor mats and the floor seemed really wet, but didn't have a smell. Is this evap coil related?   Oh yeah, and I don't know if this is related or not, but during the winter months when I am running the heat, there is this buzz noise that comes from the vents almost like something is stuck in them or the fan stopped turning, but it is REALLY loud??? Replies to this message: tidester (Jul 31, 2007 11:10 pm)
#58 of 407 Re: 96 Jeep Cherokee AC problem [unekgal] by tidester HOST Jul 31, 2007 (11:10 pm)
Replying to: unekgal (Jul 31, 2007 3:45 pm) You may want to have a look at Grand cherokee air conditioning problems.   tidester, host SUVs and Smart Shopper
#60 of 407 Cherokee A/C Compressor problems by swamprat2007 Jul 17, 2007 (5:08 pm)
#61 of 407 A/C Compressor problems by swamprat2007 Jan 24, 2007 (7:46 pm)
I have a 2001 Jeep Cherokee (100,000 miles) with an a/c compressor clutch that continually engages & disengages. I've spent hundreds of $$$ having the system flushed, recharged, checked for leaks, belts, wiring, etc. Engages/disengages in both the heater and a/c modes. 10 seconds off, 5 seconds on...repeatidly, non stop. Repair man says "live with it". This can't be normal. Replies to this message: steve4166 (Feb 22, 2007 2:18 am) blackbird79 (May 09, 2007 1:46 pm) swamprat2007 (May 09, 2007 2:34 pm)
#62 of 407 Re: A/C Compressor problems [swamprat2007] by steve4166 Feb 22, 2007 (2:18 am)
Replying to: swamprat2007 (Jan 24, 2007 7:46 pm) Hey man,   I have a 2001 Cherokee Limited with only 55,000 miles and I am having the same problem. One shop said it was normal so then I bit the bullet and took it to the dealer. They said there was an A/C leake and claimed they fixed it. When I got the car back it just did the same thing exactly as you are describing. On and off and on and off every few seconds and it vibrates and makes a deep below in the undercarriage/exhaust. My mother's 95' Cherokee does the same thing. It makes me nuts because I LOVE these trucks. I bought the 01' used because I like them so much not because I couldnt afford a new car. I dont know what to do about this problem either but you are right it cant be normal.   Steve

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