Question about 2004 Pontiac Grand Am
Disconnect battery ground side.
mark the spark plug cables coil sides to remember which cables connected where then unplug them. disconnect cables on side two on driver side one on passenger side there is a 4 bolts on corners lose them and take the all coil pack out. on bench take the coils out there are a three pieces coil contol module is under the coils look like to metal plate and remember you have to put same coils on same place on new module then reinstall everything back.
Posted on Aug 28, 2009
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Posted on Jan 02, 2017
It does not have an ignition control module.
The electronic ignition (EI) for the 4.0L engine consists of the following components:
Crankshaft position sensor (CKP sensor) and 36 minus 1 tooth trigger wheel.
Ignition coil .
powertrain control module (PCM) .
The PCM controls the firing of the coil based on the signal from the crankshaft position sensor.
The crankshaft position sensor (CKP sensor) is a variable reluctance-type sensor, triggered by a 36 minus 1 tooth trigger wheel configuration machined into the rear of the crankshaft vibration damper. The signal generated by this CKP sensor is called a CKP signal. The CKP signal provides the base timing and rpm information to the powertrain control module (PCM). Base timing is set at 10 degrees BTDC and is not adjustable.
If vehicle has no spark then turn key to on position,check engine light should come on.As you start cranking engine it should go out while cranking after about 10 secs. it should come back on(while cranking). If it come on then the PCM sees the signal,if it does not then PCM is not seeing it and this is your problem,either the CKP sensor or the wiring to it.
Posted on Mar 16, 2009
SOURCE: Engine Light ON
Your P0700 code needs to be addressed right away. This signifies a problem with the solenoid pack, which is an external part that can be fixed for around $200 if you do it yourself, $300 if you take it somewhere. But a bad solenoid pack can mess up the whole tranny resulting in a total rebuild, which runs anywhere from $1200 to $2000 depending on where you go.
Your P1770 error is a Clutch Solenoid Circuit Malfunction. Definitely sounds like you have a solenoid problem. Let me know if you have any other questions. Thanks for ranking my response and for using FixYa!
Posted on May 25, 2009
Further test showed that the Crank Position Sensor was bad. Replaced it and the vehicle was fine.
Posted on Jan 10, 2010
Testimonial: "Solid advice!"
mine just had that problem...its your M.A.P...I went to the shop to get my check engine light to go off and it said my MAP was bad so i had it fixed and I dont know what they did but after they put it on my car started misfiring...I just left mine unplugged and it runs like new...but if i plug it up my car misfires again...
Posted on Mar 07, 2010
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