Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Here is what I need you to check. Check fuses labeled "TRANS/INJ/ABS/PCM IGN 1/ and IGN 1" check all of those to make sure of two things for me. 1- make sure no fuses are blown and 2- make sure all fuses have power when the key is turned on. Let me know. Please be detailed. Thanks
And do you have a code reader or a scan tool that can read data ?
Use a test light , hook one end to ground and then poke the pink wire with ge test light and it will light up. You do have a test light correct ?
Are you doing the work or are you relaying messages ? What's the scoop on your end
Yes. I will be busy for the next few hours so I will give you a few things to try and report back the findings. No spark comes from a few things. Bad coil or ignition module (you swapped with another car so that rules that out ) a crank sensor (you changed ) a cam sensor (not changed yet ) a theft deterrent issue (security light is not flashing though ) bad power or ground to the ignition module , bad ECM. Those are the possible issues. Oh and also ignition switch. So we check power and ground at the ignition control module first before we proceed.
So at the pink wire on the ignition control module connector you will have 12 volts. Make sure a test light lights up on that wire and stays lit while cranking. If not the ignition switch may be the issue. If so then check the black wire at the ignition control module for ground. Same test as the pink wire but use the positive battery cable to hook the test light to. If you have ground but power fades then the ignition switch is the issue. Let me know what you find.
Ok. Sorry today I can't stay all day I'll check back later. Daddy duty calls. If you do not wish to wait for me there is a link on your end to opt me out. Totally up to you. I don't want you to wait on me but if you do I will help you get this resolved or at least try my best. Lou
then that means that the ground circuit is bad, i will double check where the ground comes from.
well run a new ground test wire first and then we will see
And FYI that ground wire simply goes to a ground. I'm gonna find where it goes so he can at least physically check it and see what's up
Ok the ground is either in the front of the engine below the alternator or the ground stud that bolts the engine and TRANS together near the parking neutral safety switch. Hope this information helps
Ok. I'm still here for a little bit
Sorry I don't know why I did not receive a notice when you replied. If you ran a new wire from ground to the black wire and the engine now runs then you are finished. Repair complete. That original black wire only went to ground ! I explained the two places the ground would have originated from. Which doesn't matter. As long as you ran a wire and it runs you have accurately fixed it , mission accomplished. No more money or time needs to be spent ! Ok tell me more about what you did to the fuel pump.
Ignore all that I just sent I just seen your last response about the fuel pump.
Your not answering any of my questions , I can't accurately assist without knowing what is happening on your end. I will have to opt out. My apologies. I am more than capable of assisting but I need your input. Maybe another expert can give you a definitive answer. there are 10 different things that can stop the car from starting. The fact that you had no ground and now have ground but did not run until the fuel pump was jumped tells me there is way more than meets the eye. My apologies I will have to opt out I wish you luck. Another expert will hopefully join in and assist. Lou
Hi, My Name is***** have over 20 years experience repairing vehicles. I am a ASE Certified Master Auto Technician. I am confident we can resolve your problem together.Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution.I also try to give all of the information you may need expecting a positive rating. If there is any reason I cannot get a positive rating please let me know.
I have read your back and forth with Lou. I just need to know how you applied power at fuel pump?
am going to attach a VTD learn. Lets just rule out a theft problem as this is what it sounds like to me. Let me know if this helps
The theft system disables fuel. I just want to rule out a theft problem
It should come on solid in a few seconds and start a relearn
So you have it running now?
My suspicion is an electrical problem in the fuse box located under the hood. You would have to remove the box and turn it over and inspect.
Yes it could be ECM and they are kind of common but not for this problem. I am more suspicious of an electrical connection problem
Depends on what kind of problem. You will likely need t replace it
If the fuse box doesnt have any corrosion or broken wires I would need some scan data.
Do you have access to a scanner? Test light? Spark tester?
Have you tested for spark?