WildernessJeep
NAXJA Forum User
- Location
- Houston, TX & Weston, CO
I researched "overheating", and posted to this thread. Basically, what I orginally thought may have been a gauge error is looking more and more like actual overheating.
The strongest indicator the forum has picked up on is that the headers were glowing red hot after a few minutes of up-idle, but I really haven't seen the overheating issues at idle or even up-idle (to recharge the batterys). If anything idle brings the temp back down after highway speeds.
To me, another strong indicator is that when I shut off the engine after a freeway speed run (such as to get gas), I can readily hear the coolant boiling in the engine. Even the overflow is boiling. Yes, I think it's safe to say the engine is actually overheating.
The general concensus is the exhaust system is clogged with years of crappy gas and being beat to piss on every available opportunity. I am planning on cutting the exhaust tube just in front of the cat and welding a straight pipe (temporary) out the side for some test runs. But if that doesn't fix it:
The question of engine timing comes up. The vehicle lived at sea level it's whole life, but recently has been moved to Colorado, where it serves as a vacation vehicle at my cabin. The altitude is much higher, so the engine computer should lean it out as per the MAP sensor, which I have replaced twice up there, at the engine computers suggestion. Other than the snorkel, the engine is completly stock. Not even a chip.
It is a 1998, so it has the computer (relocated for the snorkel) and IIRC a distributor.
Opinions???
Thanks,
Robert
The strongest indicator the forum has picked up on is that the headers were glowing red hot after a few minutes of up-idle, but I really haven't seen the overheating issues at idle or even up-idle (to recharge the batterys). If anything idle brings the temp back down after highway speeds.
To me, another strong indicator is that when I shut off the engine after a freeway speed run (such as to get gas), I can readily hear the coolant boiling in the engine. Even the overflow is boiling. Yes, I think it's safe to say the engine is actually overheating.
The general concensus is the exhaust system is clogged with years of crappy gas and being beat to piss on every available opportunity. I am planning on cutting the exhaust tube just in front of the cat and welding a straight pipe (temporary) out the side for some test runs. But if that doesn't fix it:
The question of engine timing comes up. The vehicle lived at sea level it's whole life, but recently has been moved to Colorado, where it serves as a vacation vehicle at my cabin. The altitude is much higher, so the engine computer should lean it out as per the MAP sensor, which I have replaced twice up there, at the engine computers suggestion. Other than the snorkel, the engine is completly stock. Not even a chip.
It is a 1998, so it has the computer (relocated for the snorkel) and IIRC a distributor.
Opinions???
Thanks,
Robert