When I turn on my heater, idle gets jumpy
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Senior Member
Joined: Nov 2002
Posts: 998
Likes: 0
From: Long Island, New York
Car: 91RS
Engine: 305tbi
Transmission: 700R4
When I turn on my heater, idle gets jumpy
My idle is normaly around 600 and pretty stable, but when the heater (on hot, cold, vent defrost, makes no differance) turns on it will drop down to 500, idle normally for a minute, go back up, go down again, and just keep going. The voltage also jumps around a little when it does it.
Supreme Member
Joined: Apr 2002
Posts: 3,552
Likes: 5
From: New Jersey
Car: 86 Corvette, 89 IROC, 1999 TA
Engine: 350, 350, LS1
Transmission: 700r4, 700r4, T-56
Axle/Gears: 3.07, 373, 4.10
sounds like you have a vaccum leak somewhere within the climate control system...
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