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Author Topic: 1987 TBI problem  (Read 6273 times)

Offline DanMC87

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1987 TBI problem
« on: March 05, 2011, 03:30:18 pm »
Truck is 87 Chevrolet K10 TBI 350 and at about 1/4 throttle the engine starts to stumble.  At idle and past 1/4 throttle truck runs smooth.  Need help ASAP!
« Last Edit: March 05, 2011, 03:33:58 pm by DanMC87 »
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Offline Da67goatman

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Re: 1987 TBI problem
« Reply #1 on: March 05, 2011, 03:40:03 pm »
Its most likely a vacuum leak.  Check around the tbi manifold gaskets for leaks.
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<Pitcrew>
1989 R2500 Suburban mild 350 TBI 700r4 10.5" 14bolt 4.10 w/ 33s
1992 fullsize Blazer 4x4  35s no lift, 4.10s, Hella driving lights, TJ Flares, Huge bumpers, Snorkel, custom interior

Offline topp

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Re: 1987 TBI problem
« Reply #2 on: March 05, 2011, 06:22:26 pm »
Check your EGR valve and Solenoid ....
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'90 Suburban TBI 350

Offline VileZambonie

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Re: 1987 TBI problem
« Reply #3 on: March 06, 2011, 06:38:03 am »
Check the TPS and check for codes. Do a search on those key words if you don't know how to do it as it's been discussed many time here.
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