Hunting Washington Forum
Equipment & Gear => Power Equipment & RV => Topic started by: huntergreg on August 22, 2012, 09:10:52 PM
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I have a 1997 ford. It has a weird miss while in drive at a idle. When I put it in gear and have the brake on is when it does this. When I speed up it will go away. when It is in park it runs fine with no miss. It is driving me crazy!! :bash: Any info would be great. Thanks
I also Have no check engine light on. I have been to autozone and checked a number of times for a light or code to come on but nothing. :dunno:
I have changes== fuel filter
spark plugs
air filter
o2 sensors
Took apart the throttle body and cleaned out the egr ports.
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Plug wires?
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Plug wires?
Would the miss be there all the time or set off the check engine light??
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any chance theres a hole in the muffler system? almost sounds like its losing back pressure :dunno:
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any chance theres a hole in the muffler system? almost sounds like its losing back pressure :dunno:
No holes anywhere. Haven't herd any kind of exhaust leaks.
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Faulty fuel injector? :dunno:
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Take a real close look at the coils - they are notorious for cracking and intermittent failures... The '97 still has two sets of 4 coils (98 and newer are coil-on-plug ignition).
I've had lots of other nitpicky little sounds that I initially though were an engine noise so poke around a bit. My '97 was a pain in the butt with similar hard to diagnose problems and I had the check engine light every other week it seemed (different ones :bash:).
Good luck... I traded mine in for a Cummins - the engine noise covers up whatever other problems there are :chuckle:
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I have a 1997 ford. It has a weird miss while in drive at a idle. When I put it in gear and have the brake on is when it does this. When I speed up it will go away. when It is in park it runs fine with no miss. It is driving me crazy!! :bash: Any info would be great. Thanks
Are you sure it's a '97? :chuckle: Because if you had said '77 this would be a classic case of the brake vacuum throwing your timing advance off. As it stands I have no idea why a '97 would do this related to the brake being depressed. Interested in seeing what the solution is.
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Usually with a bad plug or plug wire, they will go into limp mode. At least that is what has happened to me over the last 186k miles about every 60k or so.
I think the coilsand injectors as mentioned prior are reasonable places to look.