1997 Ford F150 when u start it

1997 FORD F-150

100,000 MILES • V8 • 4WD • AUTOMATIC

JOHN17

MEMBER
2 POSTS

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?

Dec 2, 2008 at 3:43 PM

BLACKOP555

✓ASE Certified 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?

Dec 2, 2008 at 6:53 PM

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

Dec 2, 2008 at 9:49 PM

BLACKOP555

✓ASE Certified 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.

Dec 3, 2008 at 6:19 PM

JOHN17

MEMBER
2 POSTS

no its good idle but just has a horrable shake that wouldnt make it shake this bad

Dec 3, 2008 at 8:20 PM

BLACKOP555

✓ASE Certified Mechanic
10,386 POSTS

so if the motor is runnign good but the vehicle is shaking i would be checking for bad motor mounts..

Dec 4, 2008 at 8:00 PM

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