RPM's jump when AC is on
#1
RPM's jump when AC is on
so i turn my ac on and i see my rpms start jumping when my car is at idle. i know that i have one ripped tranny mount which i will be replacing. but i just replaced all my motor mounts recently. anyways the rpms go from about 800 to 500 and the car feels as if its going to stall out, then it jumps back up to 800 and hovers there for a bit. this happens only a few times when just sitting at idle. i noticed this when i warm up my car every morning and when i was sitting in a parking lot for about 10 min waiting for someone. could this be a need for valve adjustment? or something more complex? thanks for your help!
btw 05 tl 5AT with 68k miles
btw 05 tl 5AT with 68k miles
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Royik1157 (04-24-2012)
#5
#6
i was thinking that too because even when i roll up my windows, i feel an extra load on my engine, however i did not experience this in the past, therefore i am confused on what it could be. it recently that the rpms jump that high and low. it settles out eventually but then theres a rumbling and vibrating from the car. in the past when i turned it on, i heard the compressor kick in but the rpms did not change and the car did not vibrate.
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#8
ya ive heard about the whole valve adjustment thing? should it happen this early? i mean i only have 70k. and how expensive is it? and does it help out with performance a bit? because my cars been sluggish lately
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DerrickW
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