Help! Help! Help!

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Oct 13, 2003 | 03:44 PM

vf78ot

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Joined: Oct 2003

Posts: 7

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From: North Wilkesboro NC

Help! Help! Help!

Ok, as I stated in my last post, I have a 1991 F150 5.0 4x4. I have put on a new throttle position sensor, spark plugs, fuel filter, and vaccum line to the throttlebody, because the old one broke. I am still having problems. Going up through 1st, and 2nd gear the truck is fine, but when the transmission goes into 3rd gear, when I hit the gas the truck begins to shake like it is missing, the engine does not race like it is slipping out of gear but the truck still shakes and vibrates, if I press the gas down harder it will shake and smooth out an accelerate, but when I let off and slow down and let the transmission go back up through the gears it will do it again in 3rd gear. It just repeats the process. HELP!

Oct 13, 2003 | 03:58 PM

dhermesc

Posting Guru

Joined: Sep 2003

Posts: 1,174

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From: Near Wamego KS

Are you sure your plug WIRES are good? I had a similar problem on a '9 with a 300 6.

Oct 21, 2003 | 11:31 PM

DPRICE1

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Joined: Oct 2003

Posts: 3

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From: SE Michigan

my neighbor had the same problem with his 95 f-150 after I did a tune-up (plugs, distrib. cap, rotor and plug wires) it "runs like new again"

Oct 22, 2003 | 12:11 AM

Fully_Loaded

Elder User

Joined: Oct 2003

Posts: 986

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From: Gulf Shores, AL

My torque converter went bad and it did similar things. I would check to see if the computer is throwing a torque converter slipping code. Assuming you have an auto.

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