I have a 94 Chevy I just bought. The truck has 164000 is a 5.7 5 speed. I have just replaced iac, thermostat, temp sensor, sending unit, tps, checked tps voltage, cap rotor, and refined engine. The problem I can not figure out is sometimes it idles 1100 sometimes 1500 and when I get off the freeway or have a lil heavy foot it sticks at 3000 rpm. I can shut off truck restart and it goes back to normal for awhile. Any input on where else to go with this?
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Monday, March 14th, 2011 AT 4:49 AM