iwannadie
NAXJA Forum User
- Location
- Gilbert, Az
Run down of what I have. Good running order no issues and used to run a solid 210 under all conditions. Older csf 3 core rad(proper mix using distilled water with a flush last year), hesco high flow thermostat housing, external trans cooler mounted in front of rad and mech fan, napa reman water pump, mopar rad cap and thermostat, confirmed working efan, napa wj hd fan clutch(i think its wj hd whatever the popular upgrade is and it seems to act fine, hard to spin cold spins more free when hot no leaks) confirmed temps with external sources, compression test shows all cylinders around 130+, no oddities on spark plugs(was thinking head gasket so I checked there), no coolant lose or signs of oil in coolant.
My temps have been all over the place lately. Driving stop and go traffic no ac they climb pretty quick and will cool down when I move. 215-220 but drops back to 210 when moving enough). Stop and go with ac the climb is more dramatic and never fully cools. 215-230 but never really drops much below 218 and and the longer the drive the higher it climbs and stays.
Ambient temps have an effect, at night when under 95 I can drive with ac full blast and sit right at 210 all night long it seemed in stop and go traffic. Freeway was a different issue and temps held at 215-218. When it gets close to 100 or over 105 and the problem amplifies Fast. Driving no ac on the freeway in 105 temps held close to 220 and would jump up if I got on the gas to pass but cool back down pretty quick to 220.
Using 2 different temp guns I confirmed the temps. I thought it was odd but may be totally normal that the driver side of the thermostat housing(small flat spot by the sensor) was showing the hottest. The passenger side(round part) was always showing pretty much 210.
I had a hesco high flow pump for years but it started leaking maybe 6 months ago and I replaced it with a napa reman. I didn't think a bad pump would present these problems or the hesco would have solved these issues since it fluctuates so much.
I was thinking not the fan clutch because its an issue in stop and to as well as freeway speed. Not temp sensor because IR temp guns confirmed. Not water pump because it does run cool at lower ambient temps.
Could be radiator plugged since it is getting up there in age and only gets hot under extreme conditions. Could be thermostat sticking, the temps on the housing seemed odd to me but again could be normal. Partial blown headgasket lettint exhaust into the cooling system.
My plan was replace the radiator since it is old, thermonstat while its drained and new cap just because its cheap. Any thing else to suggest before I throw money at the problem?
My temps have been all over the place lately. Driving stop and go traffic no ac they climb pretty quick and will cool down when I move. 215-220 but drops back to 210 when moving enough). Stop and go with ac the climb is more dramatic and never fully cools. 215-230 but never really drops much below 218 and and the longer the drive the higher it climbs and stays.
Ambient temps have an effect, at night when under 95 I can drive with ac full blast and sit right at 210 all night long it seemed in stop and go traffic. Freeway was a different issue and temps held at 215-218. When it gets close to 100 or over 105 and the problem amplifies Fast. Driving no ac on the freeway in 105 temps held close to 220 and would jump up if I got on the gas to pass but cool back down pretty quick to 220.
Using 2 different temp guns I confirmed the temps. I thought it was odd but may be totally normal that the driver side of the thermostat housing(small flat spot by the sensor) was showing the hottest. The passenger side(round part) was always showing pretty much 210.
I had a hesco high flow pump for years but it started leaking maybe 6 months ago and I replaced it with a napa reman. I didn't think a bad pump would present these problems or the hesco would have solved these issues since it fluctuates so much.
I was thinking not the fan clutch because its an issue in stop and to as well as freeway speed. Not temp sensor because IR temp guns confirmed. Not water pump because it does run cool at lower ambient temps.
Could be radiator plugged since it is getting up there in age and only gets hot under extreme conditions. Could be thermostat sticking, the temps on the housing seemed odd to me but again could be normal. Partial blown headgasket lettint exhaust into the cooling system.
My plan was replace the radiator since it is old, thermonstat while its drained and new cap just because its cheap. Any thing else to suggest before I throw money at the problem?