View Full Version : 88 chev 3/4ton
08-14-2005, 07:22 PM
So i bought a truck and the last couple days i have been drive it around, when im sitting at a light idleing the truck likes to surge. it revs up and down like it wants to go and im give it no gas. what could it be thats making it do this
08-26-2005, 09:43 AM
if it is fuel injected it could be the throttle position sensor
this is chevy country on a quite night you can hear a ford rust
08-26-2005, 10:04 AM
unplug the tps while its running and if it stops reving up and down the its the tps. if that dont work do the same with the o2 sensor.
08-26-2005, 10:48 AM
[iagree] HAD SAME PROBLEM ONCE
MY SOLUTION -- RIPPED OUT 350 PUT IN A '97 454 VORTEC
'89 chevy 1500 2001 F350 axles 5.13 gears rear Detroit '97 vortec 454 BB 4L80E tranny 39.5 boggers 12" of lift custom front bumber
08-26-2005, 10:53 AM
my toyota has done that both the head gasket went. I am not sure what the gasket problem had to do with it.
90 4runner 2" body 33" Mud brutes and mostly black
Import guy's replacement for displacement............gears gears and more gears
08-27-2005, 07:59 PM
91 F-350 Long box,standard cab,dual tanks,1200 lb up front,8000 lb out back,hi-steer,5:13's detroit in back,lockright in front.42"irocks on 16" steelies....work in progress!
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