If I have a faulty crank shaft sensor what symptoms would be going on with my 02 gmc Sonoma?
Your question is the sign of bad crank sensor,you have fire and fuel,but the crank sensor tell,s the ECM when to fire and has to be in time,if bad won,t know when to fire or give fuel correctly.
No start, dies while driving, intermittent engine misfire. But yours will not crank over, so look for an open circuit in the main power supply and grounds to the starter, if that checks good then check for power to the key cranking power side of the starter solenoid, if you have all of this then the starter is most likely the problem, unless the engine is totally seized. Then you have problems.
One other thing to check all so,would be the timeing.
Hello Tennisshoes,answering at the same time,i took it as engine turning over,but you may be correct.
The engine does turn over but won't start.
Check the crank sensor.
How do I check the cank sensor? Could the rotary button be bad?
It gets fire from the coil to the distributer. It's not getting any fire from the distributer capvto the plugs. Does that make sense?
Yep the cap is either carbon tracked, or the rotor is burned through, I would replace then both if it has never been done.
Looking for a Used Sonoma in your area?
CarGurus has 333 nationwide Sonoma listings starting at $2,150.
Search GMC Sonoma Questions
GMC Sonoma Experts