I am having trouble with a rebuilt trans and the mech. said it could be the EGR codes 327 and 328. How do I go about fixing the problem causing these codes to appear?
Thanks,
--Adrian

 

"I am having trouble with a rebuilt trans and the mech. said it could be the EGR codes 327 and 328."

adf150,

Who is this "mech."? Is he the guy who rebuilt the transmission? 'Cause I think he's pulling your chain.

Codes PO327 & PO328 are for Knock Sensor 1. Nothing to do with EGR.

Give us more info. Year,model, engine size. Any codes and symptoms you have both before and after this clown touched your truck.

 

The f150 is a 1991 5.8 liter and has 135,000 miles. The rebuilt trans will not shift into over drive unless I let off the gas. Also it hesitates will going down the road and when ever I speed up to get on the interstate it shifts real hard into high gear. The codes he said might be casusing the problem are;
327 EGR-EVP-PFE-DPFE signal too low
and
328 EGR-EVP-Voltage-Below Closed Limit.