starting problems & high idle

mapleleafs101364 · #1 10-23-2004, 12:53 AM

My 1998 Malibu LS V6 has recently developed a major starting problem--need to press gas pedal down a bit to start engine-that's not even a guarantee to start it, then if it starts the rpms race up to 2500-3000 for a bit...any ideas what could be wrong?...a friend said it could be the TPS-throttle position sensor.

cobra1 · #2 10-23-2004, 01:23 AM

check the harness connector for the IAC, if its ok, clean the IAC (idle air control), it sounds as though its stuck open too far.

99malibu_pos · #3 08-07-2007, 08:21 PM

yep My 99 malibu does the same thing, I have cleaned the IAC motor and checked the harness and still no luck. Bout ready to get rid of the dang thing. Only gave $500 for it and now I know why, problem after problem.

Speedy_1234 · #4 08-08-2007, 08:57 AM

Check engine on?

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