Okay so I've commented on a few other users threads asing questions but I think its time to start one for myself to keep my thoughts in one place.
Big thanks to TangoFox and Jerry B for the help they've provided me in the misc threads.
The Jeep: 2000, 4.0L Auto with 93k on it. Stock everything.
I'm chasing down a slight over heating issue. Quick recap, I had the 32RH transmission rebuilt in february due to user error and swamping it. Heres a few scenarios since I've gotten it back.
1) Got it back, took it on the beach in 90+ degree weather, had it in 4H due to sugar sand and it in 1st gear only, noticed it started to heat up past 210 on the beach. Once I got on the pavement it went back down.
2) Fast forward and I'm sitting in a fast food line in 90+ degree heat with AC at full blast and it creeps up past 210, get on the pavement and it goes back down.
3) Driving it on the highway upwards of 65+ MPH it goes a needle length above 210, lower my speeds to below 65mph and it goes back down.
4) Idle a few minutes with AC off and the temp goes up but comes back down once moving.
Now, could this have ANYTHING to do with the transmission being rebuilt or is it simply coincidence? How about the fact that temps in FL have been over 90 lately?
Things Ive checked:
1) Fan/Fan clutch - all signs point to the fan clutch being in working order. Stops immediately when the motor has been running for awhile and I turn it off. Hard to spin when the motor is hot, "easy" to spin when the motor is cold.
2) Lower radiator hose. The coil is in the hose. I popped open the radiator cap and tried to squeeze the hose, the hose is firm.
3) Oil color on dipstick and and under the cap - both look like used oil colors to me, I see no indications of a milky substance or anything to indicate that the head is cracked and therefore allowing coolant in.
Things I need to check/replace in this order based on easiest and cheapest:
1) Fluids (its below the "full line")
2) Radiator cap (18lbs)
3) Water pump
4) Heater core
Anyone have a similar situation and can think of what they need to check? My biggest fear is a cracked head but my buddy whos pretty handy with vehicles says that if the had was cracked he doesnt think it would ever stop "over heating". Now I bought the Jeep in December and havent paid much attention to the coolant level as I've never had an issue with over heating but I did notice yesterday its below full. Is it normal for a vehicle to lose some coolant over time or do I have the dreaded cracked 0331 head casting as I clearly am missing coolant. I dont know the last time any was added or topped off so I will be doing so.
Any advise anyone has will be greatly appreciated. I want to get this sorted out so I can justify ordering a lift kit and wheels/tires.
Big thanks to TangoFox and Jerry B for the help they've provided me in the misc threads.
The Jeep: 2000, 4.0L Auto with 93k on it. Stock everything.
I'm chasing down a slight over heating issue. Quick recap, I had the 32RH transmission rebuilt in february due to user error and swamping it. Heres a few scenarios since I've gotten it back.
1) Got it back, took it on the beach in 90+ degree weather, had it in 4H due to sugar sand and it in 1st gear only, noticed it started to heat up past 210 on the beach. Once I got on the pavement it went back down.
2) Fast forward and I'm sitting in a fast food line in 90+ degree heat with AC at full blast and it creeps up past 210, get on the pavement and it goes back down.
3) Driving it on the highway upwards of 65+ MPH it goes a needle length above 210, lower my speeds to below 65mph and it goes back down.
4) Idle a few minutes with AC off and the temp goes up but comes back down once moving.
Now, could this have ANYTHING to do with the transmission being rebuilt or is it simply coincidence? How about the fact that temps in FL have been over 90 lately?
Things Ive checked:
1) Fan/Fan clutch - all signs point to the fan clutch being in working order. Stops immediately when the motor has been running for awhile and I turn it off. Hard to spin when the motor is hot, "easy" to spin when the motor is cold.
2) Lower radiator hose. The coil is in the hose. I popped open the radiator cap and tried to squeeze the hose, the hose is firm.
3) Oil color on dipstick and and under the cap - both look like used oil colors to me, I see no indications of a milky substance or anything to indicate that the head is cracked and therefore allowing coolant in.
Things I need to check/replace in this order based on easiest and cheapest:
1) Fluids (its below the "full line")
2) Radiator cap (18lbs)
3) Water pump
4) Heater core
Anyone have a similar situation and can think of what they need to check? My biggest fear is a cracked head but my buddy whos pretty handy with vehicles says that if the had was cracked he doesnt think it would ever stop "over heating". Now I bought the Jeep in December and havent paid much attention to the coolant level as I've never had an issue with over heating but I did notice yesterday its below full. Is it normal for a vehicle to lose some coolant over time or do I have the dreaded cracked 0331 head casting as I clearly am missing coolant. I dont know the last time any was added or topped off so I will be doing so.
Any advise anyone has will be greatly appreciated. I want to get this sorted out so I can justify ordering a lift kit and wheels/tires.