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NAXJA Forum User
- Location
- Mint Hill, NC
We have tested and replaced many parts on this '91 with 4.0. Got back on the trail yesterday and after a few hours it went back to it's old ways of cutting off. It will sometimes start right back up and sometimes take several tries. We have replaced PCM, most sensors, fuel pump and filter, etc.
At this point we are thinking the gas tank is not vented properly so we did take off the cap but it was after the issue started and it did keep cutting off, but maybe not as bad. we were able to get out of trails and loaded up. So we are thinking that the cap is bad but at this point the pump too from working under a strain and high demand.
Is the cap the only method of vent for the fuel system? I thought there was a return line.
We can test pressure in the driveway but the problem doesn't happen except under trail use.
Please give me your input.
Thanks
At this point we are thinking the gas tank is not vented properly so we did take off the cap but it was after the issue started and it did keep cutting off, but maybe not as bad. we were able to get out of trails and loaded up. So we are thinking that the cap is bad but at this point the pump too from working under a strain and high demand.
Is the cap the only method of vent for the fuel system? I thought there was a return line.
We can test pressure in the driveway but the problem doesn't happen except under trail use.
Please give me your input.
Thanks