RPM fluctuation with A/C on!!!
#1
Newbie
Thread Starter
RPM fluctuation with A/C on!!!
I have a 2008 Lancer GTS with Nav. Whenever I turn the A/C on and I'm in drive (let's say at a stop light) I can hear the clutch to the A/C constantly(like every 2 seconds) engaging and disengaging. When it does that my rpm fluctuates heavily from 250-750rpm and sometimes even shuts off the engine. This doesn't seem to happen while driving expressway. What could be my possible problem?
#3
Newbie
Thread Starter
I have 108000. I was getting PO750 for a while but that seems to have cleared itself and also not related to the problem. Not sure about throttle sticking as this only happens when the a/c is on. No other warnings happening
#4
Evolved Member
Check the coolant temp sensor
14 − 17 kΩ [at -20°C (-4°F)]
5.1 − 6.5 kΩ [at 0°C (32°F)]
2.1 − 2.7 kΩ [at 20°C (68°F)]
0.9 − 1.3 kΩ [at 40°C (104°F)
0.48 − 0.68 kΩ [at 60°C (140°F)]
0.26 − 0.36 kΩ [at 80°C (176°F)]
14 − 17 kΩ [at -20°C (-4°F)]
5.1 − 6.5 kΩ [at 0°C (32°F)]
2.1 − 2.7 kΩ [at 20°C (68°F)]
0.9 − 1.3 kΩ [at 40°C (104°F)
0.48 − 0.68 kΩ [at 60°C (140°F)]
0.26 − 0.36 kΩ [at 80°C (176°F)]
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