...check around all connections, especially any that go to the body or frame from the engine. It can be a tedious job and you may have to unwrap wire harness's to find it. If you've done any electrical ...
Question about GMC Yukon XL
...Other lights like ABS, Check engine, could be a bad wire/data wire, or bad bad connection at the plug and dash. I fix a lot of them just by unpluuging the plug and plugging it back in the
...Check engine light does not come on. Dealer replaced the fuel pump (twice) but that didn't help. I replaced the cap, rotor, coil and coil wire. ANY advice would be really appreciated. Thanks in ...
...check it, or they they can do a "injector flow test" and see if its opening and flowing when commanded, could be plugged. First, make sure you are getting fire to the #8 plug. You can do this by ...
...check engine light came on for a day & then went off. Took it to my mechanic & all it said was a misfire, so he changed the plugs & wires. (He said he noticed signs of arching on 2 of the ...
...check the wiring of the sensors, unplug it and inspect the leads for corrosion. Check the wires for wearing against another part. Check the plug ends carefully the wires tend to start breaking right ...
...engine soon Trouble Code: P0161HO2S-22 (Bank 2 Sensor 2) Heater Circuit Malfunction Possible Causes: HO2S heater low control circuit is open or shorted to groundHO2S heater circuit is open or it is ...
Question about GMC Yukon XL
...have a fuel problem or a fuel filter plugged up. Fuel injection fuse/relay or PCM/ECM driver command problem . Check your connections and wiring. Wiggle wires and connectors while trying to crank
...check it with a diagnostic, it says mutliple misfires, code PO300. Then I erase the code. Then strangely the engine runs smooth. it does that for a few days and then same problem again. I'm stumped. ...
Question about GMC Yukon XL
engine codes and it said misfire on #6. We have also replaced the #6 coil. Had cats checked, they tested ok. Timing light on all spark plug wires seem to be firing on all 8 cylinders. Any suggestions?
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