I have an ‘85 Cherokee with the 4 cylinder engine. It is fuel injected. I am the second owner of it, it was three years old when I bought it. I ran it totally trouble free for 120 K when the body rusted out. Three years ago I took it off road and retired it. Since I have a very long driveway and a wood lot I put chains on it, mounted a plow and only run it when I am cutting wood or plowing snow. This summer I went out to start it and it started right up like it always has, only this time it ran for 5 or 6 seconds and sputtered and died, as if it ran out of fuel. Several more attempts to start it and it does the same thing each time. It always fires right up an runs for 4 or 5 seconds after I let go of the key (so it is not the ballast resistor).
If I can time it right and floor it just when it catches it will rev up and it seems that if I can get it over a certain RPM then seems to run OK. After running for a while (maybe 10 min, maybe an hour, maybe tomorrow) it will sputter and die again. When I try to start it might start up or it may start then sputter and die. I may or may not be able to keep it running there does not seem to be any rhyme nor reason if it will run today or not.
I left it in the woods for three days the last time it happened and when I went back in with my tractor to pull it out It started and ran fine so I drove it out. I ran it for a week on and off with no problems, I was coming out a few days later and it died and would not start until next day. Guess it was tired of workin'.
The CPS was replaced last winter and tests ok,I got a general tune up last year when I put in the CPS. I have put Dry-gas in it and changed the fuel filter and it did not help. When I changed the filter there was no evidence of water in the fuel. There seems to be adequate fuel pressure at the fuel rail, even while it is sputtering and dying. It seems like the injectors are being told not to inject.
Anyone ever run into this before? -Thanks, Packrat.
If I can time it right and floor it just when it catches it will rev up and it seems that if I can get it over a certain RPM then seems to run OK. After running for a while (maybe 10 min, maybe an hour, maybe tomorrow) it will sputter and die again. When I try to start it might start up or it may start then sputter and die. I may or may not be able to keep it running there does not seem to be any rhyme nor reason if it will run today or not.
I left it in the woods for three days the last time it happened and when I went back in with my tractor to pull it out It started and ran fine so I drove it out. I ran it for a week on and off with no problems, I was coming out a few days later and it died and would not start until next day. Guess it was tired of workin'.
The CPS was replaced last winter and tests ok,I got a general tune up last year when I put in the CPS. I have put Dry-gas in it and changed the fuel filter and it did not help. When I changed the filter there was no evidence of water in the fuel. There seems to be adequate fuel pressure at the fuel rail, even while it is sputtering and dying. It seems like the injectors are being told not to inject.
Anyone ever run into this before? -Thanks, Packrat.