Question about 2003 Pontiac Grand Am
It seems a coolant temperature sensor may be bad, reading low temp all the time causing rpm and rich fuel mixture
Posted on Apr 11, 2015
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Posted on Jan 02, 2017
SOURCE: High RPMs
The fans problem could be its clutch assembly. Replacing the clutch can solve it, it should help with engine performance. Might cost from $100 to $300 depending on the route you take
Posted on May 05, 2009
I had the exact same problem on my 04 GC. I put some Techron Concentrate Plus Fuel System Cleaner in from Wal-Mart and it seemed to fix the problems right away. Let me know.
Posted on Jun 01, 2009
First I need to ask is it a 4 speed or a 3 speed transmission. If it's a 4 speed when driving down the road pull it from drive to third gear. You shpuld hear the engine speed up if it does not then that means you have on 4th gear and you will have to take it to a transmission shop. If it's a 3 speed then just count the shift points if all 3 gears are present then drive down the road and see if the van goes into tcc. When you mean the rpms are high how high are they.
Posted on Jul 15, 2009
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