1997 1500 chevy pickup misfire on idle change sparkplugs and wires plus distrebudor cap plus rotor

Asked by May 06, 2016 at 11:58 PM about the 1997 Chevrolet C/K 1500 WT Standard Cab SB

Question type: Maintenance & Repair

misfire on idle did tuneup same problem

2 Answers

12,075

Have it read for codes, even if the check engine light is NOT on the computer will have stored information and codes. Discount auto stores will read codes for no fee. write them down.

69,655

A miss fire is a po301 to po308 code as the last digit is indicating which cylinder is misfiring. So what you would be looking at for causes is......P0305 CHEVROLET - Cylinder 5 Misfire Detected... Possible causes - Faulty spark plug 5 - Clogged or faulty fuel injector 5 - Faulty ignition coil 5 - Fuel injector 5 harness is open or shorted - Fuel injector 5 circuit poor electrical connection - Ignition coil 5 harness is open or shorted - Ignition coil 5 circuit poor electrical connection - Insufficient cylinder 5 compression - Incorrect fuel pressure - Intake air leak.... The P0305 code means that the cylinder 5 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 5. If the problem persist more tests needs to be done to diagnose problem.

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