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Car Forum / Ford / Ford Explorer / June 20041997 4.0 OHV Explorer Error Cylinder 1 & 4 Misfiring
Thanks in advance for any help... Just bought a 1997 Explorer and it is acting up since... rough idle and poor power. Had a friend test it and showed a misfire error on 1 and 4 cylinder. The plugs all white (lean) no sign of poor combustion? I checked everything I could imagine... Any guidance would be greatly appreciated! Thanks! Mike Intake manifold sealing failures are well documented with the 4.0.... since both of these cylinders are located at the very front of the motor, I would spend some time checking out the possibility of an intake leak - especially at the front of the manifold. HTH. > Thanks in advance for any help... Just bought a 1997 Explorer and it is > acting up since... rough idle and poor power. Had a friend test it and > showed a misfire error on 1 and 4 cylinder. The plugs all white (lean) no > sign of poor combustion? I checked everything I could imagine... Any > guidance would be greatly appreciated! Thanks! Mike I just pulled the intake manifold off last night... will get new gasket set and try it again... THANK YOU!!! I just pulled the intake manifold off last night.. will get gasket kit and get back to ya THANKS FOR YOUR TIME! >Thanks in advance for any help... Just bought a 1997 Explorer and it is >acting up since... rough idle and poor power. Had a friend test it and >showed a misfire error on 1 and 4 cylinder. I can't remember which cylinders share a coil, but if cylinders 1 and 4 share a coil , it could be the coil pack thats no good. Thanks... Pulled the manifold will try that next! Not knowing the mileage, but it could be a spark plug issue. I recently had cylinder misfire codes on various cylinders in my 97 explorer. Replacing the spark plugs resolved the issue. Make sure your plugs are appropriately gapped, the spec should be on the sticker under the hood. > Thanks in advance for any help... Just bought a 1997 Explorer and it is > acting up since... rough idle and poor power. Had a friend test it and > showed a misfire error on 1 and 4 cylinder. The plugs all white (lean) no > sign of poor combustion? I checked everything I could imagine... Any > guidance would be greatly appreciated! Thanks! Mike |
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