1997 Ford F-150 when u start it

Tiny
JOHN17
  • MEMBER
  • 1997 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
When I start the truck up it shakes really bad and I guess thats a miss fire if I guess but I just changed the plugs and wires and valve cover gaskets and it still does it and I dont have a clue how to make it quit the egr copper tube is disconnected from the manifold but it always have been but it wouldnt make it shake and I dont no what else it could be?
Tuesday, December 2nd, 2008 AT 3:43 PM

5 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,386 POSTS
As long as the manifold is plugged where the egr valve is disconnected on on both ends it wont matter.

Have you cleaned the throttle body and checked the IAC module?

Does it run good once the not idling?
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Tuesday, December 2nd, 2008 AT 6:53 PM
Tiny
JOHN17
  • MEMBER
  • 2 POSTS
It runs no matter what just when ur going its sounds horrable and miss really bad and just doesnt run good at all but what would the throtlle body have to do anything
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Tuesday, December 2nd, 2008 AT 9:49 PM
Tiny
BLACKOP555
  • MECHANIC
  • 10,386 POSTS
Is it a idle problem, or a problem that happens all the time.

If it was just idle the throttle body can greatly be afecting the idle if its gummed up.
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Wednesday, December 3rd, 2008 AT 6:19 PM
Tiny
JOHN17
  • MEMBER
  • 2 POSTS
No its good idle but just has a horrable shake that wouldnt make it shake this bad
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Wednesday, December 3rd, 2008 AT 8:20 PM
Tiny
BLACKOP555
  • MECHANIC
  • 10,386 POSTS
So if the motor is runnign good but the vehicle is shaking I would be checking for bad motor mounts.
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Thursday, December 4th, 2008 AT 8:00 PM

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