Car Questions
RepairPal is your advocate for car care advice and guidance

Rpm drop

(1990 Chevrolet Camaro)
in Seattle, WA on October 16, 2009
when the A/C Clutch kicks on, .. you experience a 200 rpm dip when the clutch comes on...even when heater is on
Displaying 2 answers & 0 comments
Popular Answer
The idle air control motor is supposed to sense the air conditioning compressor having come on and automatically raise the engine idle speed. With the engine running turn the steering from side to side full lock with the head lights and other electrical loads, does the engine speed also drop when these loads are put on the engine? If so the idle control is not working properly.
Sign in to reply
on December 06, 2009
autotechpat is right. first step is try a throttle cleaning. the idle control may be at its limit if normal air flow is too low.
Sign in to reply
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Engine is stalling while driving pull over and just move battery cable and starts right back up i've changed battery ...
I selected each gear and when it changed from 5 th to drive the rpm didn't drop.
Didn't find what you were looking for?