1990 Century

[Teri]

We have been having this problem for about 2 months now. It will not start for several hours after car has been ran for a period of time and shut off for 1/2 hour. Then other times it will stall out and not start. We have replaced:
plugs & wires
fuel pump, strainer
fuel filter
main computer
crank shaft sensor
oil sending unit
temp sending unit
Tested the ignition module and Mass air flow - ok
Then went to junk yard just to make sure and bought both these parts and put them on with no help to the car. Had the fuel pressure regulator tested - ok. Also cleaned the throttle body. All injectors click when running. Have hot wires on injectors when it won't start. Can anyone tell me what is next??? I am going crazy trying to figure this out. It is a 3.3 with only 89,000 on it. I have put all this money in and really would like to keep this car. Please someone help!!!!!

[GMMerlin]

Originally Posted by Teri

We have been having this problem for about 2 months now. It will not start for several hours after car has been ran for a period of time and shut off for 1/2 hour. Then other times it will stall out and not start. We have replaced:
plugs & wires
fuel pump, strainer
fuel filter
main computer
crank shaft sensor
oil sending unit
temp sending unit
Tested the ignition module and Mass air flow - ok
Then went to junk yard just to make sure and bought both these parts and put them on with no help to the car. Had the fuel pressure regulator tested - ok. Also cleaned the throttle body. All injectors click when running. Have hot wires on injectors when it won't start. Can anyone tell me what is next??? I am going crazy trying to figure this out. It is a 3.3 with only 89,000 on it. I have put all this money in and really would like to keep this car. Please someone help!!!!!

First things first...before you spend another dime for parts lets take some time and do some diagnostics.
When the car stalls, does it lose fuel pressure or spark?
When it stalls and won't restart, remove a plug wire from 1 plug and place that end close to an engine ground. Have someone spin the engine over and see if spark jumps out.
Next see if you have fuel pressure..there is a shrader valve located on the fuel rail, remove the cap and depress the valve...does fuel spray out?
Since you say you have hot wires to the injectors, remove one injector connector and place a test light between the terminals, as the engine is spun over the test light should blink...does it?
Checking the operation of these systems will narrow down the root cause of your problem...you said you had the module tested...was it hot? If it had time to cool down before it was tested, it may test good and still be the problem.

[ace98]

How did you make out??

I still haven't had one reply...

[sean buehrle]

Originally Posted by Teri

We have been having this problem for about 2 months now. It will not start for several hours after car has been ran for a period of time and shut off for 1/2 hour. Then other times it will stall out and not start. We have replaced:
plugs & wires
fuel pump, strainer
fuel filter
main computer
crank shaft sensor
oil sending unit
temp sending unit
Tested the ignition module and Mass air flow - ok
Then went to junk yard just to make sure and bought both these parts and put them on with no help to the car. Had the fuel pressure regulator tested - ok. Also cleaned the throttle body. All injectors click when running. Have hot wires on injectors when it won't start. Can anyone tell me what is next??? I am going crazy trying to figure this out. It is a 3.3 with only 89,000 on it. I have put all this money in and really would like to keep this car. Please someone help!!!!!

teri as i said i would tell you what was up with my car well heres the damage,it needs 3 new fuel injectors= 102 dollars apiece. take it to a good repair shop and pay them to do a diagnostic on it.

[sean buehrle]

Originally Posted by Teri

We have been having this problem for about 2 months now. It will not start for several hours after car has been ran for a period of time and shut off for 1/2 hour. Then other times it will stall out and not start. We have replaced:
plugs & wires
fuel pump, strainer
fuel filter
main computer
crank shaft sensor
oil sending unit
temp sending unit
Tested the ignition module and Mass air flow - ok
Then went to junk yard just to make sure and bought both these parts and put them on with no help to the car. Had the fuel pressure regulator tested - ok. Also cleaned the throttle body. All injectors click when running. Have hot wires on injectors when it won't start. Can anyone tell me what is next??? I am going crazy trying to figure this out. It is a 3.3 with only 89,000 on it. I have put all this money in and really would like to keep this car. Please someone help!!!!!

have your injectors checked,you have the same problem as i had and it was the injectors,i was getting power to my injectors but the injectors werent working so it wouldnt fire. i hope this help you out.

[Teri]

Thanks for all the help, it was one of my injectors! It is not stalling anymore but, it does have some type of hesitation in when I let off of the accelorator. My Check engine light is STILL on. I will see what codes are in it. Hopefully I will be able to fix this problem also then it will be sold ASAP. This has been a nightmare that I wouldn't wish on anyone. More money put into this car than I could ever hope in getting back. Again THANKS!! Any other help would be great.