i desperately need some help please. i am working on my truck listed above with a 4.3 v6 engine and 117,000 miles. the truck sat for one week as i was sick and unable to drive. when i went to start it it would not start . i knew it was a leaky fuel regulator that flooded the motor. i put a set of plugs in it as i have in the past to fix the same problem still no start. at this point in time the SELS has never come on the entire time i have owned the truck. i had it towed to a local shop where my " buddy " changed the plugs cap and rotor and fuel regulator .
on the ride home the SELS comes on and the terror begins. the SnapOn scan tool reads a p0171 they said it was a bad MAF . they replaced it , didn't fix it .
they said it was the front two o2 sensors , replaced them , didn't fix it . changed the air intake tube housing due to a possible bad gasket around the throttle body . didn't fix it. then they said it was a bad fuel pump , replaced that , the light is still on.i then had them take the intake back off to replace the regulator again in case it was a faulty one and to check they didn't have a vacuum leak . they smoked the intake two times and found no leaks . i didn't have a single problem until they worked on it , and the worst part is it runs great. please help .
Desperate in Texas
Travis Lenk
PS: I also changed the oil to get any fuel that might have made it to the crank case.
on the ride home the SELS comes on and the terror begins. the SnapOn scan tool reads a p0171 they said it was a bad MAF . they replaced it , didn't fix it .
they said it was the front two o2 sensors , replaced them , didn't fix it . changed the air intake tube housing due to a possible bad gasket around the throttle body . didn't fix it. then they said it was a bad fuel pump , replaced that , the light is still on.i then had them take the intake back off to replace the regulator again in case it was a faulty one and to check they didn't have a vacuum leak . they smoked the intake two times and found no leaks . i didn't have a single problem until they worked on it , and the worst part is it runs great. please help .
Desperate in Texas
Travis Lenk
PS: I also changed the oil to get any fuel that might have made it to the crank case.
Jun 29, 2007 at 3:27 AM
