Burb has high idle

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v2500burb

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Charlottesville Virginia
First Name
Jay
Truck Year
1990
Truck Model
v2500
Engine Size
350ci
truck seems to idle high (no tach it's cold I haven't installed it)
I've been told the TBI needs to be rebuilt
Any suggestions?
How difficult?


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v2500burb

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Location
Charlottesville Virginia
First Name
Jay
Truck Year
1990
Truck Model
v2500
Engine Size
350ci
Has anyone any experience with CFM Tech.com
I'm looking to rebuild my throttle body and make a few modifications.



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v2500burb

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Charlottesville Virginia
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Jay
Truck Year
1990
Truck Model
v2500
Engine Size
350ci
I'm going to rebuild it
But wanted to know if anyone had put on an adjustable spring and fuel pressure gauge to adjust fuel pressure.


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skysurfer

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1989 Suburban
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V2500
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5.7/TH400/NP241C
Check for vacuum leaks before spending money on the throttle body.

I have an adjustable fpr but it's hidden down on the frame, not up on tb like most.

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Last edited:

bucket

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It could just be a leaking throttle body mounting gasket, it happens a lot.
 

v2500burb

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Location
Charlottesville Virginia
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Jay
Truck Year
1990
Truck Model
v2500
Engine Size
350ci
Will do
I plan on replacing ALL hoses when it warms up.
I'm itching to play!!!!
The parts are piling up!!!

Any suggestions on a good repair manual
All the ones I have found don't show ANYTHING for a V2500



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