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Heres the deal: I bought the truck about 5 months ago. The vehicle currently has 216xxx KM and is for the most part in good condition.
In short:
Truck is severely overheating, losing a lot of coolant with NO external leak (even under pressure), cylinder 8 is still misfiring (despite changed plugs), there is a coolant smell coming from the vents inside cabin but no wondow fogging or wet floors. Coolant seems clean of oil and oil looks free of coolant. I cant tell what color the exhaust is or if I smell coolant... I smell exhaust.
Long version:
When I bought the truck there was a smell comong from the vents but didnt know what it was until recently when I was told it was coolant/antifreeze. The windows dont fog up nor is there moisture on the passenger side floor. About a month ago, my gauge light came on telling me to check my gauges, when I did I saw that the truck had been overheating and was almost in the red. I pulled over as quickly as possible and let it cool for over an hour. Upon inspection, I found my coolant holding tank was full but my rad was empty. I filled her up and went on my way (drove from BC to Seattle ~270km) the truck was fine but I noticed that the rad was missing a bit of coolant again, so I toped ot up amd continued to keep an eye on it daily. For the first 3 Weeks_ish I was adding less than a cup of water but adding water daily and the check engine light came on (code p0308- cylinder 8 miscire), so I took it to the shop. There are no external leaks, even when put under pressure. The mechanic said to keep an eye out amd keep track of how much I was adding.
About 2 Weeks ago it overheated again and again almost to the red. I pulled over and filled the rad again. Over the last two Weeks I had been adding a lot more coolant to the rad. The truck also began running rough. I brought it back to the shop (4 daus ago) where I had the spark plug for cylinder 8 replaced, the rad placed under pressure again and the code reset. Again there were no external leaks. Next day the check engine light was on again and reading the same code, cylinder 8 misfire.
2 days ago I left for Seattle again, despite the truck now running rougher than before with idle around 550 (lower than the smooth 700 it usually idled at). Before I left home Iade sure all fluids were toped up and went on my way. It wasnt long before I began to overheat again. I pulled over waited added a lot of coolant and went on my way. About an hour to 1 1/2 hrs later I start to overheat again, I pull over and add the remaining coolant (at this point I had added a gallon of coolant since the morning when I toped up fluids). What I added wasnt enoigh and I ended up having to add another half gallon of coolant. Where is it going?
Any ideas?
Heres the deal: I bought the truck about 5 months ago. The vehicle currently has 216xxx KM and is for the most part in good condition.
In short:
Truck is severely overheating, losing a lot of coolant with NO external leak (even under pressure), cylinder 8 is still misfiring (despite changed plugs), there is a coolant smell coming from the vents inside cabin but no window fogging or wet floors. Coolant seems clean of oil and oil looks free of coolant. I cant tell what color the exhaust is or if I smell coolant... I smell exhaust.
Long version:
When I bought the truck there was a smell coming from the vents but didnt know what it was until recently when I was told it was coolant/antifreeze. The windows dont fog up nor is there moisture on the passenger side floor. About a month ago, my gauge light came on telling me to check my gauges, when I did I saw that the truck had been overheating and was almost in the red. I pulled over as quickly as possible and let it cool for over an hour. Upon inspection, I found my coolant holding tank was full but my rad was empty. I filled her up and went on my way (drove from BC to Seattle ~270km) the truck was fine but I noticed that the rad was missing a bit of coolant again, so I toped ot up amd continued to keep an eye on it daily. For the first 3 Weeks_ish I was adding less than a cup of water but adding water daily and the check engine light came on (code p0308- cylinder 8 miscire), so I took it to the shop. There are no external leaks, even when put under pressure. The mechanic said to keep an eye out amd keep track of how much I was adding.
About 2 Weeks ago it overheated again and again almost to the red. I pulled over and filled the rad again. Over the last two Weeks I had been adding a lot more coolant to the rad. The truck also began running rough. I brought it back to the shop (4 daus ago) where I had the spark plug for cylinder 8 replaced, the rad placed under pressure again and the code reset. Again there were no external leaks. Next day the check engine light was on again and reading the same code, cylinder 8 misfire.
2 days ago I left for Seattle again, despite the truck now running rougher than before with idle around 550 (lower than the smooth 700 it usually idled at). Before I left home Iade sure all fluids were toped up and went on my way. It wasnt long before I began to overheat again. I pulled over waited added a lot of coolant and went on my way. About an hour to 1 1/2 hrs later I start to overheat again, I pull over and add the remaining coolant (at this point I had added a gallon of coolant since the morning when I toped up fluids). What I added wasnt enoigh and I ended up having to add another half gallon of coolant. Where is it going?
Any ideas?
try checking your tension pulley
I have a 2000 Dodge Durango SLT 4x4 5.9L with Towing Package. Two years ago I had a radiator leak and had to have it replaced. When I did I have both radiators replaced (The main for the engine core and the smaller one for the transmission. After that, I had absolutely no problem with my engine until about a week ago. I noticed the engine getting hot while doing city driving. I would rev the engine a couple times and the temp would go down to normal (below middle of the gauge). Now it won't even go down after reving. I have stop, let it cool, then drive until it gets hot. My milegage is 128,000.
I opened the hood and noticed that the upper hose assembly (the one with a T connector with the Radiator Cap) was leaking. It looks like the T or the hose has failed. I just bought an upper assembly and will replace it, but I fear I'm only fixing a symptom and not the probelm.
I have really liked this forun as it gave me a lot of ideas. First will be to change the Radiator Cap (apparently this little $6 item is often the cause of many over heaing problems if it does not properly seal.
I am also going to do the 3 quick on/off clicks on the ignition to get the LED code in the odometer area to see if it leads me to something.
Beyond that, I have good fluid level in the radiator and it is a nice green color (no dark color from rust etc).
sdout or anyone else with experience with this issue:
Do any of you have any other suggestions?
Thanks
Thanks,
Jeff
p.s. I am assuming the thermostat can be found just under the connection of the upper hose assembly goes into the engine block. Is this correct?
Jeff
Thanks,
Jeff
Another possibility is the plug itself has broken thread(s). You need to change the radiator out.