Hello out there in luv land. Can somebody help me? I just purchased a 1984 Isuzu pup diesel. It has 70,000 original miles and a auto tranny.
(barn find). It has been sitting for along time. Items I replaced. 1)fuel filter, 2 oil changes, fuel hoses, thermostat/coolant, battery, complete exh
aust system, timing belt, and put fresh fuel in it. I got it running well and
idling well,however here is my problem. After driving it around for a couple of days the engine has started to run rough and fuel mileage is not
so good. There are times where it won't get above 45mph with the pedal
to the floor. Then the engine will start to buck,kick,pop,like it is miss firing.
Then there are times when I drive it and it will run perfectly fine. It will get up to 65 mph just fine. I'm machanicly inclined and know alot about gas engines,but I have tried everything to the best of my abillity to figure this thing out. I'm stuck! I'm really frustrated with the diesel engine. I hope that somebody has great advise on what to do. Please help?????? Thanks for time. Mike