1991 Pontiac Sunbird Sunbird wont start

JOSHUASDAD

MEMBER
1991 PONTIAC SUNBIRD
6 CYL
FWD
AUTOMATIC
140,000 MILES

I have a 91 sunbird with a 3.1l engine. The car has sat for a about 1 year. When I tried to start it the other day it cranks over fine and it seems to be getting fuel. It has started once or twice but runs rough. When cranking and you let off the starter you hear the injectors still activating. Does any one have any thoughts Thanks for any help.

6 Replies

LEGITIMATE007

MECHANIC
5,121 POSTS

With a car that has been sittin that long. Things can deteriiorate just from sitting. I would check my spark, check my fuel pressure, make sure that the pump is comming on, and check my map sensor. Then we can take it from there. Do those things and then get back to me. In case you dont' know how to go about checking the pressure and spark, i'll send you a couple of videos that my bosses, have come up with they are excellent quick and to the point. Hold tight and check your email

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Tuesday, May 27th, 2008 AT 1:22 PM

LEGITIMATE007

MECHANIC
5,121 POSTS

This one here is for your ignition and spark:D

https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm

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Tuesday, May 27th, 2008 AT 1:23 PM

LEGITIMATE007

MECHANIC
5,121 POSTS

And this one here is for your fuel system pressure.

https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm

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Tuesday, May 27th, 2008 AT 1:25 PM

JOSHUASDAD

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2 POSTS

I have spark and fuel pressure. What I don't understand is why does it sound like the injectors are firing with the key on and the engine not running. I have gotten the car to start a couple of times and it seems to idle smooth but then dies.

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Wednesday, May 28th, 2008 AT 11:18 AM

LEGITIMATE007