Alright, so I've been struggling with my truck for the better part of 3 weeks now. (My truck is 88 7.3 with banks non-wg, 5spd 4x4)
The problem first occurred while I was driving, I was just about to the floor at about 2700 RPMs when suddenly I dropped power. The truck kept running though, and as I was pulling in about a mile up the road it died going down the drive. I popped the clutch and it started back up long enough to get it parked and I shut it off. Started up fine, and made it about 7 miles down the road before it died again (no spluttering, just died instantly). Repeatedly popped the clutch, finally got it going again right before it came to a stop and made it 4 more miles to home. The next morning I changed my inline fuel filter (3/8 clear plastic filter) and my main fuel filter, noticed that my mechanical lift pump had a hole in the housing so I put a delete plate where it was in the block and left the same electric lift pump on it that I had already been using. Bled all of the air out of it, and left it to idle for 20 minutes. Idled fine, full fuel flow to the filter, no air in it. Revved it up while in neutral, held at 3k rpms, all still good. Hop in to go down the road and it does the same thing within a mile, just dies all of a sudden, no spluttering or anything. I limp it back home, and decide to check flow on my electric pump. I get about 1.2 quarts in a minute, this should be about 18gph which is way more than my truck will use. Spray soapy water around injector o-rings while it is running, no bubbles. Checked, double-checked, and re-checked all hoses, clamps, and fittings. Any ideas about what is going on?? I am at my wit's end here... thanks in advance guys!!
The problem first occurred while I was driving, I was just about to the floor at about 2700 RPMs when suddenly I dropped power. The truck kept running though, and as I was pulling in about a mile up the road it died going down the drive. I popped the clutch and it started back up long enough to get it parked and I shut it off. Started up fine, and made it about 7 miles down the road before it died again (no spluttering, just died instantly). Repeatedly popped the clutch, finally got it going again right before it came to a stop and made it 4 more miles to home. The next morning I changed my inline fuel filter (3/8 clear plastic filter) and my main fuel filter, noticed that my mechanical lift pump had a hole in the housing so I put a delete plate where it was in the block and left the same electric lift pump on it that I had already been using. Bled all of the air out of it, and left it to idle for 20 minutes. Idled fine, full fuel flow to the filter, no air in it. Revved it up while in neutral, held at 3k rpms, all still good. Hop in to go down the road and it does the same thing within a mile, just dies all of a sudden, no spluttering or anything. I limp it back home, and decide to check flow on my electric pump. I get about 1.2 quarts in a minute, this should be about 18gph which is way more than my truck will use. Spray soapy water around injector o-rings while it is running, no bubbles. Checked, double-checked, and re-checked all hoses, clamps, and fittings. Any ideas about what is going on?? I am at my wit's end here... thanks in advance guys!!