GMC Truck Forum banner

1 - 2 of 2 Posts

·
Registered
Joined
·
2,255 Posts
Discussion Starter #1 (Edited)
2006 Silverado 5.3 1500. No check engine codes. And both the tps and petal sensor work as they should with the key in the run position.

When it’s running you can get at least one or two full revs to 6k, then the TPS sensor hangs around 25%, and will not let it go over 3k rpms. I can kill it and restart and get another very solid pull of 6k, then it’s back to the 3k limit.

I’ve tried multiple throttle body’s with no change. Sometimes it will let me rev all I want in park, but once I go into gear I get the one pull past 3k before it locks it back to 3k.

Any help with this one?

Has been sitting for a while. I’ve drained the gas, new plugs n wires, air filter, injectors, and 02 sensor, and laptop tune. Laptop says it running like a top, beside getting stuck at 3k.
 

·
Registered
Joined
·
2,255 Posts
Discussion Starter #2
Head gasket was blown for future reference.
 
1 - 2 of 2 Posts
Top