intake warped???

Anybody ever heard of a Intake manifold on a 2002 5.3l vortec tahoe getting warped....???

My mechanic said that they have had 3-5 of them lately....

thanks in advance

The plastic plenum will warp causing a lean condition or cold rough idle/misfire condition

Put a 180 degree thermostat in your truck to protect it from excessive heat. OBD2 will still be able to go into closed loop, and your truck will perform better.

DD