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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: euromade on January 30, 2008, 10:53:49 am
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I have a funny issue with my 87 5.0 TBI. When I put it in reverse it stalls on me, every time, unless I play with the gas pedal. When in D i have absolutelly no issue! It starts fine, it idles fine, it does not stall on me when I stop at a red light.
Any ideas. I'd like to use this thing to tow my boat, but with this stalling issue it would be almost impossible to use it at a boat ramp.
Thanks,
New parts installed in the past month or so:
- Fuel filter
- air filter
- plugs and wires
- fuel pump/sending unit.
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check ur vacuum lines
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i'm assuming he has a 700r4 so he doesn't have vacuum lines that control the tranny but check all the vacuum lines on/around the motor to make sure you don't have a leak
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Check the throttle body base gasket. With the engine idling mist some carb claean at the base of the throttle body and see if the engine speed changes.
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If you don't lose rpms at a stop light the timing is probably ok. When was the tranny fluid changed last? A tranny shop can tell you if you have a bad torque converter. I would expect it to have low power and hesitation problems with a vacuum leak.