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Lou P.
Lou P., ASE Certified Technician
Category: Pontiac
Satisfied Customers: 4086
Experience:  I have 15+ years gm experiance and am very knowledgeable with systems and operations and diagnosis and have access to factory wiring diagrams and tsb's
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I have a 1986 pontiac trans am 5.0 TPI. Runs perfect 1 time

Customer Question

i have a 1986 pontiac trans am 5.0 TPI. Runs perfect 1 time then won't hardly run at all.It started bucking, loosing power. wont idle. I replaced fuel pump, wires, plugs, distributor, new bosch 19# ***** Ran great for a week then started acting up again. Im lost. Please help
Submitted: 1 year ago.
Category: Pontiac
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer: replied 1 year ago.
If i touch injectors I only feel a couple pulsating
Expert:  Lou P. replied 1 year ago.

hello, start the car and tap on the mass air flow meter and see if the engine starts to run funny or die. it sounds like a mass air flow issue at this point.

Customer: replied 1 year ago.
Where is it located
Customer: replied 1 year ago.
I cant feel some of the new injectors pulsating. Only the 2 on passenger rear
Customer: replied 1 year ago.
Expert:  Lou P. replied 1 year ago.

the mass air flow is the sensor right in front of the intake in the intake stream.

Expert:  Lou P. replied 1 year ago.

its your air fliters, then a mass air flow sensor, then the rubber intake boot to the intake.