[phil_long]

I got the control module tested, coil pack tested, and I got brand new plugs and wires. The car still won't start. What could be the problem. I was thinking a crank sensor

 

[Real-T]

Have you been turning it over and over ?

Maybe hook a timing light to one of the wires, and if it lights, then there is spark.

If there is spark then maybe pull a plug and if it looks dry then the injectors aren't firing.

look at the crank sensor and the cam sensor for any obivous damage or misalignment



:dunno:

 

[phil_long]

Well, I had been turning it over and over before. Bought some new plugs and took out the old ones. They smelled like pure gas. So I installed the new ones and still the same thing.

 

[Steve Wood]

Have you done anything as simple as crawl under the car and look at the crank sensor to see if the bracket is broken?

 

[Real-T]

I would think a good guess would be pointing to spark.

Try hooking up the timing light, if nothing (no spark) then:

-Cam sensor and/or Crank Sensor (ECM needs to see both to start)
-Connections from ECM to module/coilpack
-ECM itself

:dunno:

 

[phil_long]

I'll check the crank sensor and cam sensor and let you guys know. If one is the problem is it hard to change them out out.

 

[earlbrown]

do you have spark? and if you take the oil fill neck off, does the rockers move when you try and crank it?

 

[phil_long]

I got spark but it's just not turning over. Havent check that. I'll let you know.

 

[gbsean]

you said it is not turning over...do you mean nothing at all or it is turning over but just wont fire.

so i back tracked to the fact you changed your coil pack...check the connection on the ignition module to make sure a pin is not bent..and did you check to make sure you reconnected the coil pack wires up...and is the ECM power wire by the battery plugged in and are we sure all the plug wires are hooked back up right.

 

[phil_long]

It turns over but it just wont fire. I will double check to see if any pins are bent. I am certain that the plug wires are on correctly. Im also certain that the wires are hooked up correctly underneath the coil pack.

 

[urntfstenuf]

on the pass side fender there is a 4-4 in size, electronic control thingy -it has something to do with spark. it's right beside the map sensor. check that.

 

[phil_long]

Ok, cool. Were are the sensors located and what am I checking for with the electronic spark thingy?

 

[Ttype83]

check here for locations: http://www.gnttype.org/maint/sensors.html

 

[phil_long]

So im guessing down below near the crank on the driver's side?

 

[MR Buick]

Ok, cool. Were are the sensors located and what am I checking for with the electronic spark thingy?

I doubt it's the esc thingy.That doesn't control spark,it works w/ the knock sensor.

 

[phil_long]

I got a new crank sensor and changed it out and the car still won't start. What the hell? Guess that wasnt the problem

 

[earlbrown]

How many miles are on your current timing set?

 

[TurboGN86]

check the cam sensor and make sure it hasent been knocked outta allignment. also check ur grounds, and double check all ur connections.

 

[phil_long]

Well, as far as mileage, the motor was rebuilt but not sure if the timing set was replaced. If not replaced, then about 150k miles. The cam sensor will be next I guess. Thanks for you guys help.

 

[Real-T]

While you are checking the cam sensor, take the cap off and see if the interruptor ring spins/changes position when you crank it over.

If not, then the timing chain or cam gear is suspect. Mark the position of the window on the Cam sensor and pull it out to check if the gear is OK.

If so, then maybe the timing chain.

:dunno: