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Post by jdhog on Jul 29, 2004 12:20:37 GMT -6
Hi everyone new here hope you can help me , when i have the air on the car will have sudden pauses when going down the road , It is very anoying and the dealer says every thing checks out a-ok >??Have anyone else had a similar thing happen to them and if so what did you do . thank you .
jdhog
7-29-04
12.56pm
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Post by JimW on Jul 29, 2004 18:23:50 GMT -6
Interesting....I might need a bit more information here.
Does it surge with the air on? Does it happen when the air is turned on while driving? Or when the air is turned on before driving? Does the car completely stall out or it is just a power loss? Any SES or dash lights?
Are you currently experiencing any other mechanical issues.
I'm having a hard time understanding exactly how the climate control systems are affecting driveability. Not that I dont believe you it just seems a bit unlikely that the two are somehow related
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Post by Aurora40 on Jul 29, 2004 18:37:18 GMT -6
The compressor will cycle on and off, and this puts drag on the engine. You should only be able to barely feel it, if at all. Perhaps your compressor is going and the drag it puts on the engine is more severe?
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Post by Isnibs on Jul 29, 2004 19:28:18 GMT -6
I had an aerostar with a similar problem. The a/c had been recharged at a cheapo garage and the R134a or freon they used had no lubricant in it, Im told.
This caused the compressor to slow the engine down slightly as it ran.
After a few days the compressor seized up and I had to disconnect the wires to it to get the engine to run.
If this is at all related to your problem I would have the a/c recharged asap.
Isnibs
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Post by jdhog on Jul 29, 2004 19:33:57 GMT -6
Hi Guys and thanks for the info .
It is surgeing when the ac is on and only after it has been driven 50+ miles .I,ve had it in the shop for 2 days now and darn if it don,t do anything for them only when we drive it .
They say the ac is all charged up a-ok and all bt it still has those times were it surges bad , darn i,am at wits end here .
any more idea,s will be greatly appreceated .
jd 8.10pm
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Post by erw38 on Jul 29, 2004 20:37:21 GMT -6
Try looking at vaccum hoses. I don't know if the compressor has any directly attached to it, but I would look for a vaccum leak somewhere. This is only a guess, but the reason I say to look for a vaccum leak is because the problem you describe is very similiar to on caused by this type of leak. I had a leak on a pervious car (oldmobile 98) and it constantly made the engine surge/stall/and drive like heck.
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Post by RADEoN on Jul 29, 2004 21:48:52 GMT -6
Hi Guys and thanks for the info . It is surgeing when the ac is on and only after it has been driven 50+ miles .I,ve had it in the shop for 2 days now and darn if it don,t do anything for them only when we drive it . They say the ac is all charged up a-ok and all bt it still has those times were it surges bad , darn i,am at wits end here . any more idea,s will be greatly appreceated . jd 8.10pm my dad is the A/C doctor. illtell him about this tomorrowand have him reply other forumsgoers may know him has busted ratchet |
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Post by jdhog on Aug 2, 2004 16:48:01 GMT -6
hopeing to hear from the ac man , hope he know,s something new >??
jdhog 8-2-04
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Post by omegaic on Aug 2, 2004 21:04:22 GMT -6
The compressor might be seizing up, or maybe it has a bad clutch?
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Moe2244
Aurora Newbie
Black 95 Aurora
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Post by Moe2244 on Oct 25, 2004 20:56:17 GMT -6
Does anyone know, how many vacuum hoses are in the engine compartment, and there locations, if possible?
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Post by gfulton on Oct 30, 2004 19:40:33 GMT -6
I'm not sure what you mean by a pause? If that means you can feel the compressor engage during cruise, then I believe that's normal. The computer will compensate for compressor load by moving the idle air control actuator at engine idle only, not at cruise speeds. I can easily tell when the compressor engages on my '99 at cruise speeds. The Aurora has the CCOT a/c system. Clutch cycling orifice tube. Cooling is controlled by cycling the compressor clutch. The other G body, the Riviera, has a variable displacement compressor that is always engaged anytime a/c is turned on and varies it's output as a function of evap. outlet pressure. You won't feel any clutch cycling in a Riviera, but I really think you'll have to get used to it with your Aurora. My son's old '92 Olds Cutlass had the variable disp. compressor like the Riviera, and I never felt any compressor engage/disengage. However, if yours is really dropping the rpm significantly, then, yes, you may have a compressor that's either overserviced or about to mess the bed. Hope this helps.
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scottydl
Super Moderator 
There's nothin' like an American V-8...
Posts: 7,373
Staff Member
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Post by scottydl on Nov 1, 2004 11:45:58 GMT -6
However, if yours is really dropping the rpm significantly, then, yes, you may have a compressor that's either overserviced or about to mess the bed.... Hehe, nicely said. It sounds like we've now got an expert on the Aurora A/C systems... yay! ;D |
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Post by gfulton on Nov 1, 2004 12:35:57 GMT -6
No expert at all, Scotty. It's just that when I felt my '99 doing what I think jdhog's Aurora is doing, I read up a little on it in the serv. manual. My son's car, the '92 Cutlass never did that, and I noticed the different type compressor on the Auroras. Doesn't bother me since I know what it is now.
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