bbilt

Thanks for the reply: air pressure good, new air & fuel filters, brakes & trans checked. I have run 4-5 tanks of fuel through it from different stations & no change. The pump was set with a dial indicator, so the timing should be right (so the shop says) I'm not so sure it right. I don't know what else to try. I have talked to other shops and they don't know. What could they have changed that changed my MPGs that much. Thanks Bill in San Diego

My foot didn't get any heavier. The only thing that changed was the injector pump rebuild. I'm looking for my 16 MPGs back or better if I can. Heard from others that they're getting muct better than the 16 MPG I had been getting. I have a friend that has a v10 Ford that get 12 MPG. Where did my MPGs go. New filters, valves adjusted, timing adanced a little. What kind of MPGs are you getting? Thanks Bill in San Diego

They said the spray ( good atom) was good . Both Bosch shops tested them and OK 'd them. Can injectors make that big a change in MPGs. Same injectors before and after the pump rebuild. What changed so much that I lost 4 to 5 MPGs. Filters all changed, no leaks found, good fuel. I have test drove about 1000 miles trying and testing things with out any improvements. Still looking for my MPGs Thanks Bill in San Diego

They pop tested the injectors , they were between 200 & 220, a little low. They were rebuilt, they were at 260 I think thats on the high end? Tested at 2 different shops.There was no change in the MPGs after the injectors were rebuilt, so that wasn't it. I'm not smoking gray or black. Thanks Bill still looking for my MPGs

Checked for leaks, non. Boost is 7-8 @ 65 mph on the freeway Injectors rebuilt & retested good to spec Thanks Bill still looking for my MPG

Newbie just found the site, any ideas. Thanks Lost MPG after VE injector pump rebuild. I’ve had good experiences at NTG Racing up till now. Time to rebuild the injector pump so I took it to NTG Racing, it was leaking bad. I just ask for good mileage and no performance up grades. I was hoping that it might improve my MPG of 16. They sent the pump out to Omega for the rebuild. Got the truck back it seemed OK until I filled the tank and checked the mileage. Holy crap 12 MPG. I have never got that bad a mileage before. It was always around 16 MPG . Well took it back so they could figure it out. They gave it back to me after some adjustments to drive, wow now I could watch the fuel gauge move, 9 MPG. I took it back, they were stumped. They checked other components. “Everything checks out fine. “ Its got to be the injectors,” OK if that fixes it I’ll pay, if not I won’t pay for them. They didn’t change the injectors. They drove it and adjusted the fuel screw on the pump (per the rebuilder Omega) that brought it up to 10.5 MPG we’re not even back the 12 MPG I got at the first try. So is it the pump or is it the injectors? I removed the injectors and had then tested (Advanced Diesel) they tested OK, not the problem. As they had a little over 100,000 miles on them I had them rebuilt. Reinstall them and no change. NTG took the pump out and had it tested (Express diesel) a Bosch Certified center. The pump was taken apart and inspected. Not all the worn parts had been replaced. But still OK . Reassembled and ran on their test machine and readjusted to factory specs 1.25 then advanced to 1.45. Reinstalled ( with a dial indicator) in the truck and now I have it back. It seems ok, a little less power. Put some freeway mile on it and I got 12.65 MPG. Not the decent MPG I had before the rebuild All I want is my 16 MPG back. I’m losing 4 to 5 miles per gallon that adds up quick. What have they done to my truck? And they are still stumped. I still think it’s the timing. Joe said he doesn’t want to see the truck again. Now what? 1992 w250 auto, gauges, 16cm 4" exhaust the rest stock 103,000 m