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I have a 91 F350 IDI would I be able to do a diagnostics test on it? An if I am what all does the diagnostics test cover. Will it show u what's wrong with the engine and tranny?

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  • Cars & Trucks Master
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You can buy a scanner and hook up to the computer on the truck. Or you can jumper a plug in the engine compartment and make the check engine light flash the trouble codes. You can look online for the procedure and the definition of the codes.
I doubt you will get much info about the transmission since transmission control did not become the computer's job until later in the 1990s.

Posted on Jul 27, 2013

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Posted on Jan 02, 2017

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SOURCE: TRANNY PROBLEM

THAT CAR HAS SENCERS EVERY WHERE TRANSAXEL COULD BE BAD WHEEL BEARINGS

Posted on Dec 12, 2008

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SOURCE: I have 91 ford f350 making nosies need help plz help me out

it sounds like the filter might not be the right one....
or the pump isnt priming.....

like "diesel mudder" said previously : was yr tranny in bad shape b4 you changed the fluid and screen?

Posted on Jun 24, 2009

tripletauto
  • 1450 Answers

SOURCE: Need the glow plug/controller wiring

HERE IS THE DIAGRAMtripletauto.gif

Posted on Dec 15, 2010

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IGNITION COIL

dttech_23.jpg

COIL HOUSING

dttech_24.jpg
SPARK PLUG BOOTS

dttech_25.jpg

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