Question!! - A/C Issues!!
Jun 11, 2005, 09:03 PM
#1
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Question!! - A/C Issues!!
Ok, first Moderators - I don't know where this belongs so sorry if I posted in the wrong area.
I am having some issues with my Air Conditioning . . . . . yeah yeah I know its a luxary some of us need when its muggy and rainy in the midwest when I can't have the windows down. My issue is when I turn the A/C on the RPMs don't jump up at all, they actually going down a little bit. The car will bogg for a few seconds before slightly jumping back up. It ultimately will sit very low and the idle is very rough. It never dies on me but I fear that its going to.
Initial idle when car is cold - 1200-1400 rpms
Idle when car is warm NO A/C - 900 rpms
Idle when car is warm and A/C on - gets as low as 500rpm (when stopped)
Where I can start to look for my issues?? I don't know where to start. Here are my mods that would have anything to do with my electrical system.
Blitz SUS Power Filter
Blitz Turbo Timer = With Harness
Blitz SBC ID Boost Controller
Dynoflash'd - not Mail-in (Al took the car for about 4 pulls for me
thanks Al)
Lineage Grounding Kit
Walbro Fuel Pump - edit
Helix O2 Housing
Helix Down Pipe
UR High Flow Cat
Blitz Nur Spec Cat Back Exhaust
The car runs fantastic with it off but for the few times I have it on I would like to see if I can kick the RPMs up a little higher so the car runs ok when I am stopped. All help is appreciated!!
Thanks,
DrBump
I am having some issues with my Air Conditioning . . . . . yeah yeah I know its a luxary some of us need when its muggy and rainy in the midwest when I can't have the windows down. My issue is when I turn the A/C on the RPMs don't jump up at all, they actually going down a little bit. The car will bogg for a few seconds before slightly jumping back up. It ultimately will sit very low and the idle is very rough. It never dies on me but I fear that its going to.
Initial idle when car is cold - 1200-1400 rpms
Idle when car is warm NO A/C - 900 rpms
Idle when car is warm and A/C on - gets as low as 500rpm (when stopped)
Where I can start to look for my issues?? I don't know where to start. Here are my mods that would have anything to do with my electrical system.
Blitz SUS Power Filter
Blitz Turbo Timer = With Harness
Blitz SBC ID Boost Controller
Dynoflash'd - not Mail-in (Al took the car for about 4 pulls for me
thanks Al)Lineage Grounding Kit
Walbro Fuel Pump - edit
Helix O2 Housing
Helix Down Pipe
UR High Flow Cat
Blitz Nur Spec Cat Back Exhaust
The car runs fantastic with it off but for the few times I have it on I would like to see if I can kick the RPMs up a little higher so the car runs ok when I am stopped. All help is appreciated!!
Thanks,
DrBump
Last edited by DrBump471; Jun 12, 2005 at 12:04 AM.
Jun 11, 2005, 09:26 PM
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I wish I could help you out but its definitely not normal. I have an 03 and with my A/C on it actually idles just a tad higher (around 800 when a/c off and about 900-1000 with it on)
Jun 11, 2005, 09:26 PM
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me too, when come to a stop i will have to turn off the AC to prevent the eratic idling, then turn it back on when i reach cruising speed. anyone got a solution to this??
Jun 11, 2005, 09:31 PM
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just started getting warm in chicago so I jsut started using the A/C and I also notice a similar situation. I don't really have much issues iddling but I do notice that when running the A/C I can tell it is robbing some power b/c the rpm's dont climb as fast as when it's off. Feels like I have to give it more gas when coming off a light so that it doesn't stall. I just figured it was normal so eighter give more gas or turn off a/c then turn back on later
Jun 12, 2005, 12:10 AM
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wow . . . . not the only one with the issue!!
Anywho . . . . I did notice one thing tonight.
Today my issues were terrible (hot and humid around 85 or so) and less than a 1/4 of a tank of gas. Well I filled up today but had the windows down ever since. Driving to and from the bars it was raining again so I had the windows up and with 3 ladies in the car I needed the A/C back on. (Yah I know I was ballin!!
) The car didn't do anything weird. The idle stayed pretty constant and had very few issues at stop lights. Could this be only when I was low on gas?? Was the Walbro pulling too much current. . . . . I don't know just thinking out loud.
I will try it out tomorrow in the heat with more gas and see what happens.
Anywho . . . . I did notice one thing tonight.
Today my issues were terrible (hot and humid around 85 or so) and less than a 1/4 of a tank of gas. Well I filled up today but had the windows down ever since. Driving to and from the bars it was raining again so I had the windows up and with 3 ladies in the car I needed the A/C back on. (Yah I know I was ballin!!
) The car didn't do anything weird. The idle stayed pretty constant and had very few issues at stop lights. Could this be only when I was low on gas?? Was the Walbro pulling too much current. . . . . I don't know just thinking out loud. I will try it out tomorrow in the heat with more gas and see what happens.
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Jun 12, 2005, 06:45 AM
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Yea it does happen to most evos but with cams I would say I have cams and it happens to me with A/C only on random days. To be honest Al has tuned my friends car and it would do it without cams at all times sometimes without A/C it might just be the way he tunes the car and when he would start it, it would make a rumbling noise like its trying to find the right idle the thing would just act weird then I took him to TurboTrix and his car runs alot better im not saying AL tunes are bad for A/C just saying give TurboTrix a call and see if they can help = ) Best of luck I think its normal for cams so dont worry.
Jun 12, 2005, 08:41 AM
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Value: Yeah the A/C worked just fine. Cooled the car off in a few minutes, did a fine job.
mrbkkt1: I don't know if I have ever driven the car hard with the A/C on. Its usually when people are in the car. But I will take the A/C clutch into consideration if it keeps happening.
Boston: I don't have cams (yet by end of month hopefully). Are you saying its better when you have cams or better when you don't have cams???
I am going to headout soon and see what happens today with the A/C. Will keep everyone posted.
mrbkkt1: I don't know if I have ever driven the car hard with the A/C on. Its usually when people are in the car. But I will take the A/C clutch into consideration if it keeps happening.
Boston: I don't have cams (yet by end of month hopefully). Are you saying its better when you have cams or better when you don't have cams???
I am going to headout soon and see what happens today with the A/C. Will keep everyone posted.
Jun 12, 2005, 08:53 AM
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having cams is fine Im saying it wont make a difference if u have them or not. Im sayin it might be the tune try turbotrix if u want my car runs fine with cams just very rarely does it act up. Drive it for a month if it keeps doing it its the tune. I dont think harm could be caused BTW
Jun 12, 2005, 10:11 AM
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Yea I've always had the same issue too. But this used to kinda happen when i had a 300zx TT as well. Power gets robbed and its more sluggish from a start and stuff. However, recently I've noticed that it makes a odd noise as if something is loose. DOes anyone else's sound real loud. I figure I'll just have it looked at anyways.
Jun 12, 2005, 10:56 AM
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I had a weird problem with A/C too. When I'm on the highway in 5th gear w/ the A/C on, it will bogg and the steering wheel vibrate when I step on the throttle. Not all the time but on long drives I noticed it like I'm in two gears too high or something.
Jun 12, 2005, 06:34 PM
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hrmm . . . interesting points by everyone!! Hopefully someone can fill us in on how to fix this.
I did find that I get similar results with just the fan running. I watch my volt meter just bounce around within .3 volts and then will drop hard to around 13.0 for a few seconds, then bounce back up to 13.9. This correlates exactly with what the RPMs are doing.
Don't know, the car never dies and there are stops that it doesn't do anything different. Interesting none the less. At least I'm not the only one
Keep the points coming and hopefully someone can fill us in!!!!
I did find that I get similar results with just the fan running. I watch my volt meter just bounce around within .3 volts and then will drop hard to around 13.0 for a few seconds, then bounce back up to 13.9. This correlates exactly with what the RPMs are doing.
Don't know, the car never dies and there are stops that it doesn't do anything different. Interesting none the less. At least I'm not the only one
Keep the points coming and hopefully someone can fill us in!!!!