I have a 99 silverado, 5.3 liter 4x4 137k miles. Runs great when engine is cold. After about 10-15 minutes of driving when engine warms up, engine bogs down, idles rough, and dies when throttle is applied. I ran the codes, had low voltage x4 oxygen sensors, and random misfires. I replaced the 02 sensors because I am well over 100k miles. I also replaced the plugs (gapped to.060), wires, flushed the fuel system, new fuel filter, put in Shell 91 octane, replaced gas cap (the o ring was cracked badly). Still no fix. I have heard it might be the MAF, MAP, TPS, intake gasket leak. Any suggestions? I'm a full time student and broke as hell. I cant afford to have it fixed at a shop. What is wrong? Any ideas will help! This truck is nothing but problems! :X :x :x
have the same problem?
Sunday, February 12th, 2006 AT 6:01 PM