Wires are fairly new, plugs look good, burning clean.
I removed the air pump and most of the hoses.
Trying to plug the EGR port on rear of exhaust manifold, but it keeps blowing out.
The truck loses power when going up a hill and I press on the accelerator. If I let up on the pedal it starts to run better. Checked the fuel pressure and is within spec.
Found out there is no vacuum at the fuel pressure valve.
Is this a faulty throttle body that Hayes repair manual talks about? I tried cleaning the vacuum nipple out and the port goes through to the throat of the Throttle body.
Truck has always had a slight miss at idle.
Any help is appreciated
have the same problem?
Sunday, June 20th, 2010 AT 5:03 PM