NathanJ777
NAXJA Forum User
- Location
- California
I have a 99 4.0, when the electric fan is on or the AC which I know also activates the electric fan I get a rough idle. Has anyone else had this issue? Any advice would be appreciated.
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Rough idle when ac or fan is on
- Thread starter NathanJ777
- Start date
- Location
- Minneapolis, MN
Are you sure the symptoms are a rough idle ? There is no correlation that I know of between the e-fan running and the idle speed.
Any signs or symptoms of low battery voltage ?
I once had an e-fan that became out of balance from either old age or damage. Whenever it was on, it created vibrations and noises that were very noticeable in the passenger cabin that one might suppose were caused by a rough idle.
Any signs or symptoms of low battery voltage ?
I once had an e-fan that became out of balance from either old age or damage. Whenever it was on, it created vibrations and noises that were very noticeable in the passenger cabin that one might suppose were caused by a rough idle.
Last edited:
cruiser54
NAXJA Forum User
- Location
- Prescott, Az
Ever clean your throttle body and IAC?
NathanJ777
NAXJA Forum User
- Location
- California
No I haven't, it's on my to do list. I bought the Jeep with 170k miles on it, I'm up to 185k and have no idea if its ever been done. Thanks.
NathanJ777
NAXJA Forum User
- Location
- California
Interesting, my voltage seems ok although my cables are crap. I have a new set of cables from K suspension I haven't had time to put on. When I got the Jeep the factory E fan was bad. I replaced it with one from Amazon, I wonder if its a low quality fan. Thanks for the heads up.
xjnp242
NAXJA Forum User
- Location
- MidWestUSA
My 2k does the extreme rough idle thing when the AC is turned on not to mention overheating the engine during prolonged idles.
I'm thinking the AC compressor is shot with 360k miles on it or a high pressure situation with a plugged accumulator.
Thinking on changing the compressor and the rest of the AC components maybe this Spring.
I'm thinking the AC compressor is shot with 360k miles on it or a high pressure situation with a plugged accumulator.
Thinking on changing the compressor and the rest of the AC components maybe this Spring.