At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
2005 cobalt ls 2.2l engine. NO spark checked ignition module and coil pack both still good. replaced crank sensor still no spark not sure wehat else could be casueing it I have the the coil pack and module on top of engine to watch for spark so I konw it has nothing to do with spark plugs or boots
i changed a trans car ran fine 2 days later no spark took coil offf then check for spark with a lite no spark so i put coil back on started up 8 times in a row then i put air box back on no spark agin lost
\i changed a trans car ran fine 2 days later no spark took coil offf then check for spark with a lite no spark so i put coil back on started up 8 times in a row then i put air box back on no spark agin lost
\
does the engine light come on with the key turned on that bis of course if it id not jumped on its timingdoes the engine light come on with the key turned on that bis of course if it id not jumped on its timing
You can't post conmments that contain an email address.
I was going to say crank sensor, but you changed it. What have you done to it latley? Or did this just start? I kinda want to say PCM for some reason. Any welding done on the car latley?
car was parked in heated garage 10 yrs ago, now no spark ,sat 10 yrs with no battery could computer lose memorycar was parked in heated garage 10 yrs ago, now no spark ,sat 10 yrs with no battery could computer lose memory
You can't post conmments that contain an email address.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Your spark plug wires go to coils, coils sit on top of ignition module.You have two crank sensors, if crank sensor issue, check the 7x crank sensor, on back side of engine block, down low, two wire connector, wire colors, yellow and purple.
repairpal.com > Problems > Chevrolet > Cobalt Check Engine Light Due to Engine Misfire on Chevrolet Cobalt .... 2007 Chevrolet CobaltVisitor ... The coil pack was bad and was making the cylinders misfire.
One of the coil packs or the ignition module is probably bad. Test for spark when cold. If no spark on any coils suspect the ignition module or crank position sensor. If spark is gone on only one coil check the plugs and wires to that coil pack. If theplugs and wires are ok then replace thge coil pack. Don't forget the obvious load test the battery and clean the battery connections. If the check engine light is on run any diagnostic codes and repair
Yes you are heading in right right direction. Check to see if there is spark out of coil. Spark at coil means replace distributor or rotor. No spark at coil replace ignition module or crank sensor good luck. Oh yea crank sensor is cheaper i would try that first if there is spark out of coil.
Check gas and spark. Check if fuel pump is still working. Do you have fuel pressure? Or can you check the fuel pressure? With key on, the pump should have put fuel under pressure in the lines and up to the injectors.
Check ignition system by checking for spark at one of the spark plug wires, with the engine cranking over. You need to see a blue, snapping spark to know the ignition system is good. If no spark on one wire, check another or all of them. If no spark, and no trouble codes-could be a bad crank position sensor. This sensor helps the computer calculate the timing of the spark, the main sensor the computer uses to signal for spark. It signals to the ignition control module (which controls the coils and the primary current to the coils ((the coils-where high voltage is created to cause spark at the plug)) ). So no spark? Could be a bad crank sensor...or a bad ignition control module...
If you have a single coil and not a coil pack, you might want to test that coil, but if shut down while driving, sounds like computer related, so check ignition controls: that would be crank sensor or ignition control module, or in worst case a bad PCM.
Sounds like a bad crank sensor or a bad ignition module. If you have a scanner that can read sensor data, you can crank the engine over and see if there is an "RPM" reading. If there is an RPM reading, then the crank sensor is good...Throw the module away. If there is no RPM, replace the crank sensor.
Hello and welcome. if this is almost always the ignition control module that sets on top off the coil pack. I have seen several of these do this. here is a picture of the control module
i changed a trans car ran fine 2 days later no spark took coil offf then check for spark with a lite no spark so i put coil back on started up 8 times in a row then i put air box back on no spark agin lost
\
does the engine light come on with the key turned on that bis of course if it id not jumped on its timing
×