8Mud
NAXJA Forum User
- Location
- Central Germany
Martin, Eagle, Ed from GA. among others have mentioned grief from the EGR. It has usually been my experience that they sometimes hang open and cause stalling at stops or slow cornering. Or the diaphram tears which acts as a vacume leak.
Vacume tested mine last fall, checked to make sure it seated all the way, seemed OK.
Went for a second look today, the symptoms being, hunting at idle (up and down in slow cycles a few hundred RPM), at operating temp. EGR solenoid open to vacumn. A serious flat spot at around 2000 RPM´s, with an occasional chunk, chunk, chuck or something that resemblies a crossfire, under certain throttle positions. Most often 2/3 throttle at 2000 RPM for the miss or stumble.
Found the tension on my EGR diaphram is really weak, plugged the EGR vacumn line, went for a test drive, much better low and mid range torque. I compared the tension on the diaphram, with an other EGR I have in the garage, the tension to the piston/diaphram on my 88 is seriously weak.
Vacume tested mine last fall, checked to make sure it seated all the way, seemed OK.
Went for a second look today, the symptoms being, hunting at idle (up and down in slow cycles a few hundred RPM), at operating temp. EGR solenoid open to vacumn. A serious flat spot at around 2000 RPM´s, with an occasional chunk, chunk, chuck or something that resemblies a crossfire, under certain throttle positions. Most often 2/3 throttle at 2000 RPM for the miss or stumble.
Found the tension on my EGR diaphram is really weak, plugged the EGR vacumn line, went for a test drive, much better low and mid range torque. I compared the tension on the diaphram, with an other EGR I have in the garage, the tension to the piston/diaphram on my 88 is seriously weak.