1986 Ford F-150 Engine hesitates and blows out smoke

Tiny
CHEDDER91
  • MEMBER
  • 1986 FORD F-150
Engine Mechanical problem
1986 Ford F150 V8 Two Wheel Drive Automatic

I changed the the regulator and temp sensor and I the the injectors are working fine not sure thow but today I was flooling with it and I took a connector lose from under the plenum and it ran pretty I drove aroud the block no flooding or black smoke when I pluged it back in back to the flooding and black smoke im guessing tps sensor I need help to identify what it is but with the connector I drove like two blocks and the engine seem like if was send code in and out so I hook the connector back up with it was running it made the engine stall I wanna know if that sensor even though it stalled it started back up. HELP!
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Monday, July 12th, 2010 AT 4:18 PM

8 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
It's gonna help me if we narrow down where the connector is you removed, can you post a picture?
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Monday, July 12th, 2010 AT 4:26 PM
Tiny
CHEDDER91
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  • 16 POSTS
Umm yeah I could when I get home im using someone eles computer but it rite under the plenum it has two screw in with three wire coming from it right into I connector it like directly under it
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Monday, July 12th, 2010 AT 4:49 PM
Tiny
MERLIN2021
  • MECHANIC
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The TPS is directly lined up on the throttle shaft, held on by two screws. What color are the wires? TPS has orange/white, black/white, and dark green/lt green.
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Monday, July 12th, 2010 AT 5:44 PM
Tiny
CHEDDER91
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Orange black and green solid
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Monday, July 12th, 2010 AT 5:55 PM
Tiny
MERLIN2021
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Picture please!
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Tuesday, July 13th, 2010 AT 2:09 PM
Tiny
CHEDDER91
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Ok I just got my camera when it not raining im goin to take the pic but the wires are the colors that u said they I had to look again
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Wednesday, July 14th, 2010 AT 10:22 AM
Tiny
CHEDDER91
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I that it cause i brought 1 today could that be the problem


http://www.2carpros.com/forum/automotive_pictures/546737_12Jul_0001_1.jpg

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Wednesday, July 14th, 2010 AT 11:40 PM
Tiny
MERLIN2021
  • MECHANIC
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That does look like the TPS, but under it, are those your plug wires? If so relocate them and inspect them for signs of arcing, high tension wire like these can interfere with your sensors, including the TPS, re-route these wires!
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Thursday, July 15th, 2010 AT 1:00 PM

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