5.0Mav
03-10-2009, 01:10 AM
well this question is in regaurds to my '89 grand marquis but it has the EFI 5.0 in it, stock, so im sure alot of you fox guys are pretty famiular to all the stuff bolted ontop of the heads
anyway, when the motor's cold and you start it up it idles a little high for a few seconds untill it gets warm and drops back down to normal. but during that time at high idle i can hear a faint pulsation in the idle, up and down, up and down.
ive shot some wD40 in around the TB and other seals and gaskets that were easy to see after it but i couldnt get any change in idle speed
im not getting any engine lights but sometimes i get a slight stumble when coming off from a light
idk, any ideas or should i just take a few hours out of a beautiful spring afternoon and change out some of the diffrent intake and plem gaskets along the way ;)
anyway, when the motor's cold and you start it up it idles a little high for a few seconds untill it gets warm and drops back down to normal. but during that time at high idle i can hear a faint pulsation in the idle, up and down, up and down.
ive shot some wD40 in around the TB and other seals and gaskets that were easy to see after it but i couldnt get any change in idle speed
im not getting any engine lights but sometimes i get a slight stumble when coming off from a light
idk, any ideas or should i just take a few hours out of a beautiful spring afternoon and change out some of the diffrent intake and plem gaskets along the way ;)