Grand AM :: 98 - AC Compressor Not Coming On - Cooling Fan Runs When Car Started?
Oct 19, 2014
I have a 98 Grand am with the 2.5 and recently noticed first that the a/c compressor wasn't coming on. It had freon added recently and did okay for a few days,then no compressor coming on again. (It still has freon) Then I noticed that the engine cooling fan was running as long as the engine is running on cold or hot engine with heat controls off (I know the compressor runs when on on defrost position as well as a/c). I thought the 2 problems may be related? I found 5 relays at R/F strut tower and the 3rd relay cut off the fan,so I swapped some of the relays, but made no difference.The fan only quits when I turn the engine off, and I can't get the a/c compressor to come. I don't if I have 2 seperate problems or not. Could it be the PCM?
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I have a 93 pontiac grand am 3300 V6 with auto tranny. My problem is cooling fan starts running as soon as car is started. AC not on or defrost. In turn doesn't allow engine to reach normal operating temp. I have replaced both the ect sensor & gauge sending unit. I've noticed there's a red light with temp symbol in lower left hand corner of instrument panel that stays on & won't allow ac to come on. Also if I unplug fan relay & allow engine to come up to operating temp the light hoes off. Until the engine drops below 200degrees then it'll come on again. It has just the one fan & I have ruled out the fan relay cause I replaced with a new one. Also, looking for wiring diagram for the rest of relays on firewall & as to what they control.
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Have a 06 Grand Caravan 3.8L that suddenly quit and would start back up easily enough, but one had to keep foot on the gas to keep it going.
I pulled two codes:
P0123-throttle postion sensor 1 high
P0508-IAC valve sensor circuit low/undercurrent
So far I have removed the IAC and cleaned it with throttle body cleaner, cleaned throttle body out as well with the spray, installed new EGR since it got mangled trying to remove it for cleaning. Removed the TPS connector and with key on, took measurements and I am getting a reference voltage proper ( almost 5 volts). I then back probed the connector once it was plugged back in and again things checked out, the reference lead was varying between .7 and 4.7 volts as I manually moved the throttle plate.
I had switched out the IAC with a used one, from an engine that had been running before being parked, but it made no change.
Note: I have a new TPS but am holding off on changing it until I investigate whether or not it may have a clogged fuel filter causing it to stall at idle speed. Now if can just locate where it is..the sketchy diagrams in my Alldata program are useful.
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2004 GTP. I have recently replaced the condenser, drier, compressor......
My issue is that my compressor only works when jumped. I checked the relay and 10 amp fuse located in the engine bay fuse box and both seem fine. I replaced the pressure switch and put a new pressure switch connector on it. I got it to take a full charge by jumping the compressor. It blows very cold when jumped. The outside temperature on the dash is reading correctly.
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I have an 05 Prius with 53k miles and the ac just recently stopped working. The blower fan still comes on, but neither the compressor nor condenser cooling fan will come on. I've checked the fuses and relays, and they check out ok. I'm hoping there may be one I missed? It just stopped working with no warning signs. What could be causing this? If the compressor was bad, the condenser fan would still work, right? I'm fearing it's the ac inverter. Do the symptoms match?
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The past week I have noticed my battery cooling fan running constantly on all highway trips - 20 mile one-way trips going 65-70MPH.
The performance of the battery doesn't seem be degraded, but it seems like the battery is hopping more between charging cycle or whatever you would call it , where you watch the instantaneous MPG on the highway drop down for 10 seconds to 40-50, then back up to 60-70.
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The A/C is not working in my 2002 S-10. Currently the compressor runs, but the air is not getting cool. I tried adding freon, but it has not worked. The low side pressure is about 50 psi, and would drop a few pounds when the compressor is started, but it drops no further. I have not noticed the compressor cycling while it is on. The can of refrigerant is not empty, but the system does not seem to be taking any more from that can.
Do I just need to add some more coolant from a fresh can, or is something else at work here. Also, probably unrelated, when down shifting it is fairly common for the air to switch from blowing up front to blowing on the defrost.
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The issue I'm having is the A/C. When I got the truck the A/C was completely freezing. Recently however, the compressor was having issues not engaging and I fixed that by simply plugging the cord to the accumulator thing. . Now the compressor engages, but is not cooling really at all. It is an old truck and the compressor is a little worn from what I see maybe 2mm space when not engaged. I checked the levels of freon/coolant with a gauge and the amount is perfectly fine. Plus there seems to be no leaks.
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2007 Ford F150 half-ton. No cooling of air at the outlet of the ductwork. Freon charge is good, I watched the tech pull the system down and hold it for the prescribed time period. Compressor will not start. I am being told that this means a failed compressor, but I am of the idea that the pressure switch for low pressure must have failed, or the orifice is stopped up. I am also being told that the compressor, evaporator, and orifice tube needs replaced in order to remedy this issue. The counter man at my local parts house cannot find in his computer any pressure switches, kinda making me think that everything is in the unit. In short, if I can avoid buying the compressor, I would like to.
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Have an issue with my front air con not working.....
When you start the car there is a rattle/squeaking noise, this sounds like a worn pulley, when you press the air con button to turn it on the noise stops. It does not make any sound changes to the unit/engine to indicate the compressor engages and the is no cooling from the unit.....
Is it a new compressor or is there a common fix for this issue?
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Other than lack of cooling ,will a failed ac compressor on a 2006 Volkswagen Beetle cause other issues if not repaired? it is a convertible.
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My 6.0 is cooling poorly . Clutch is engaging , condenser free of obstructions, static charge L95 , H. 105. Running psi at 94 ambient is 50 and 225. This morning with cooler ambient in mid 70's it was 40 and 200. I'm thinking compressor .
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