Car surging/running poor with A/C on

[5point0dude]

My '91 5.0 runs poor and sometimes the car surges the second I turn the A/C on. When I turn the A/C off, the problem goes away completely. Also, when I am idling and turn on the A/C, the voltage goes down, and even further when I put the turn signal on. In the morning I don't have problem, but at night with the lights on and if I put my turn signal on, the volts drop a ton. These are very annoying problems and I am looking to see if anyone has had this problem or has any info on how to fix it. Thanks

 

[5.0 con-vert]

Sounds like parasitic drag has pwned you. The electrical systems are kinda weak in the cars and when you have lights, blinkers, stereo and A/C on an 85 amp alternator, somethings gotta give. The only thing I can say is to look into the 3g conversion.

 

[HISSIN50]

Clean the IAC. and ensure you dont have any vac leaks.

 

[5point0dude]

Thanks for the reply, I'll try cleaning the IAC and look for leaks.

 

[5point0dude]

Thanks for your reply. I've heard of the 3g conversion, but I don't know what it is, what does it consist of and where can I find it?

 

[HISSIN50]

Thanks for your reply. I've heard of the 3g conversion, but I don't know what it is, what does it consist of and where can I find it?

3G thread



IAC cleaning

 

[SVT32VDOHC]

The thing surging is normal when the clutch locks up on the compressor when the AC is on. My Lightning did that, my Cobra does it, my 97 F150 does it. It just creates more drag.

 

[Modular2v]

clean the iac!!!!!!



that is all