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hesitation whenin gear

Joined
February 27, 2010
Messages
18
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City, State
wauregan ct
Year, Model & Trim Level
1993 ford explorer xlt
ill cut to the point it wouldnt start and had no code i put a new maf a new crank sensor and plugs and wires still no start then i put a pcm from another 93 explorer in it now it sarts.
starts fine but when in gear it hesitates bad to the point i wont leave the driveway i also have a popping noise coming frome the exhaust any ideas on how to fix would be very appreciative am currently taken the exhaust off to see if the cats a plugged
 
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MrShorty

Explorer Addict
Joined
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Messages
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City, State
Spanish Fork, UT
Year, Model & Trim Level
92 XLT and '87 Bronco II
Maybe some kind of misfire? I might try a cylinder balance test.
 
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Joined
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City, State
wauregan ct
Year, Model & Trim Level
1993 ford explorer xlt
what do you mean a cylinder balance test. never heard of something phrased that way thank you for the reply
 
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MrShorty

Explorer Addict
Joined
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Messages
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City, State
Spanish Fork, UT
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92 XLT and '87 Bronco II
Cylinder balance test is a test that tries to show if all of the cylinders are contributing equally. The basic idea is to idle the engine and disable each cylinder one at a time and see how disabling that cylinder effects the idle. A "good" cylinder will have a noticeable impact on the idle. Disabling a bad cylinder won't have any effect on the idle.

If you have sequential fuel injection, the PCM can run a cylinder balance test automatically. I mention how to enter the cylinder balance test in my "notes on pulling EEC-IV codes" thread in the EEC-IV forum. When I've done it manually, I've pulled the spark plug wires one at a time.
 
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Joined
February 27, 2010
Messages
18
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City, State
wauregan ct
Year, Model & Trim Level
1993 ford explorer xlt
thanks thats understandable sad to say ive done this on other vehicles ill try it in a little bit
 
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Joined
February 27, 2010
Messages
18
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0
City, State
wauregan ct
Year, Model & Trim Level
1993 ford explorer xlt
thanks for the info i i found a brand new wire with a problem
 
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