Help

[Jper]

Ok, So the first day I got my car I cut the exhaust off after the cats..I just installed a bbk crank pulley and at about 4500 rpm it falls on its face..Is this because it has no back pressure?

[John4cam]

Ok, So the first day I got my car I cut the exhaust off after the cats..I just installed a bbk crank pulley and at about 4500 rpm it falls on its face..Is this because it has no back pressure?

Usually high rpm break up is fuel related, but you changed your crank pulley, im guessing an underdrive crank pulley? did it do this before the install?

[Jper]

Usually high rpm break up is fuel related, but you changed your crank pulley, im guessing an underdrive crank pulley? did it do this before the install?

Yes its the underdrive crank pulley, and no it didnt

[Troll]

is the check engine light on? pull the codes if it is.

[Jper]

is the check engine light on? pull the codes if it is.

It kicked on when my buddy took it for a ride and got on it pretty hard, but after we shut it off and I drove it around a lot tonight it never came back on.

[no1sirbutler]

did you use the right bolt for the crank pulley? if you replaced the pulley it should have came w/ 2 bolts 1 is longer than the other so you can pull the pulley on the crank. i would double check that bolt and also make sure its tight b/c the crank angle position sensor is held down w/ the crank pulley bolt and it might be loose and virating to cause this condition.

[Jper]

did you use the right bolt for the crank pulley? if you replaced the pulley it should have came w/ 2 bolts 1 is longer than the other so you can pull the pulley on the crank. i would double check that bolt and also make sure its tight b/c the crank angle position sensor is held down w/ the crank pulley bolt and it might be loose and virating to cause this condition.

Used the right bolt, and its tighter than a 13 yearold

[Troll]

It kicked on when my buddy took it for a ride and got on it pretty hard, but after we shut it off and I drove it around a lot tonight it never came back on.

If it was on at all, there should be a code stored in your system. If you don't have a programmer, go to an Auto Zone. They will usually pull the codes for free. Write them down and report back. Somebody on here has a list of the codes and descriptions or you could google "FORD CEL CODES".

IMO, The OBDII system in these cars is pretty sensative. The car usually doesn't have an obvious physical problem without tripping the cel with a code.

[Jper]

Thanks Ill check that out

[blizzard]

in case you need it ??

http://www.obd-codes.com/index.php