jcolindunn
NAXJA Forum User
- Location
- Calgary
So I had what (hopefully not) appears to be a lack in judgement buying an 89 xj. The truck is badass- its got a lift, sway bar and 33 inch tires so you can understand what compelled me. It has a new motor however, apparently out of an 94.
The truck had obviously been driven hard, I managed to get it for super cheap because i got it the day the last owner was moving, unfortunately for this reason i never got a test drive.
Enough talk- onto the problem
So the truck has no problem starting (assuming the battery is charged) cold. It even idles smoothly. However, when I put in in reverse, the truck stalls/dies and then won't start up again. I have a bit better luck putting it in drive, but at best it won't run for to long.
I have replaced the spark plugs (which were shot!), also i checked the rotor on the distributor cap and it seemed alright.
-I haven't checked the fuel pressure as i don't have the right tools, however when i pressed the valve some shot out, so that should be good enough?
-I tried adjusting the TPS, it idled a little higher however it didn't seem to have much effect, however when i reved it backfired a bit (oh shit)
-When it is idling, if you rev it it comes back down slowly (like the throttle body/sensor is sticking?)
-When trying to start it hot, it will sputter/fire every 5 seconds or so, perhaps not all cylinders are firing?
-I still haven't changed the oil, its really dirty
ANY ideas would be appreciated! Hopefully you guys have experiance with this.
Other background- My DD is a 92 4dr 4L, I want to be able to tear it up with this rig on the weekends!
Please help me out!!! Thank you in advance.
The truck had obviously been driven hard, I managed to get it for super cheap because i got it the day the last owner was moving, unfortunately for this reason i never got a test drive.
Enough talk- onto the problem
So the truck has no problem starting (assuming the battery is charged) cold. It even idles smoothly. However, when I put in in reverse, the truck stalls/dies and then won't start up again. I have a bit better luck putting it in drive, but at best it won't run for to long.
I have replaced the spark plugs (which were shot!), also i checked the rotor on the distributor cap and it seemed alright.
-I haven't checked the fuel pressure as i don't have the right tools, however when i pressed the valve some shot out, so that should be good enough?
-I tried adjusting the TPS, it idled a little higher however it didn't seem to have much effect, however when i reved it backfired a bit (oh shit)
-When it is idling, if you rev it it comes back down slowly (like the throttle body/sensor is sticking?)
-When trying to start it hot, it will sputter/fire every 5 seconds or so, perhaps not all cylinders are firing?
-I still haven't changed the oil, its really dirty
ANY ideas would be appreciated! Hopefully you guys have experiance with this.
Other background- My DD is a 92 4dr 4L, I want to be able to tear it up with this rig on the weekends!
Please help me out!!! Thank you in advance.