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Discussion Starter · #61 ·
1-30-2012

Well.. my jeep is broke down. I'm guessing the water pump as signs were showing that it was leaking. It over heated while I was on 95 going to work yesterday. Turned on the heater and it was blowing cold, first it has ever done that. Either a blockage or bad pump. Pulled off the highway on an off ramp, and steam was coming from the hood. Waited till it cooled to under 150 and pulled into a parking lot less than a 1/4 mile away. The jeep didn't want to stay running at idle. Going to replace the water pump, thermostat and radiator cap. Also going to flush the system and run a cleaner through it. I suspect the head gasket is blown too. That is out of my comfort zone. Anyone want to help this weekend that has done that?

My day was almost a total bumber. My sister-in-law had to pick me up from work. Then I went to pick up my wife in her car(sister and her car pool). She had 4 lights on!! Why don't they tell me anything! Check engine light, Low coolant, change oil, and the oil light(guess is low oil). And if to mock me the gas light went on after 2 miles! Got gas, the gas cap seems like it doesn't close all the way(possible exhaust leak and cause of check engine light). Checked the oil, didn't even register on the dipstick! How is this thing driving? Added coolant, changed the oil and filter. I first attempted to just top it off with oil but I almost emptied a 5 qt jug in it. Decided to replace the filter while I was pretty much filling an empty engine. Now only the check engine light remains. Going to get a new gas cap to see. Told her to take it to autozone to get the code checked but I feel like if I want it done I'm going to have to do it myself.

1-31-2012

I picked up all the parts. Only cost me $55. I also went to check on the Jeep and see what I could diagnose real quick. Opened the rad cap and there was brown sludge right at the top, definatly clogging it up. May not be a bad pump but either way I got it and I should replace it anyway. May need a new radiator too or just replace it for piece of mind. Either way I can't repair it in a parking lot and will get it towed home. Going to pull the radiator and pop off all the hoses and run water through everything. Going to use half the bottle of cleaner in the radiator with it off the jeep and flush it. Then going to put everything together and put the cleaner through the entire system, flush it, then fill it with G-05 HOAT coolant that can only be got from Napa(or dealer).

I haven't flushed the cooling system since I got and I kinda doubt it was ever done. At 87k now. It's possible I put in a "for all types" coolant months ago when I didn't know any better. I wish I tried to replace the water pump last weekend when I suspected it. Would have found the problem and it would be at home.

Got a friend to tow it home for me. It was to late to start tonight but I will get to it tomorrow.
 

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Discussion Starter · #62 ·
2-1-2012

I got everything apart. Had some white flakes in some of the lines. Read that it was mineral deposits from not using distilled. I have only ever added coolant mix till last week when I over heated once and noticed I was very low on coolant, to get home I topped it off with bottled water. I ran a garden hose through the radiator and it ran clear easy. Anyway I was removing all the gaskets and I now know that I hate paper gaskets as they are a royal pain to get off. Been spending over a half hour scraping it. I took a break for dinner and brought the thermostat in for a test. It was stuck closed. Maybe I didn't have to replace my water pump, though I am still going to do it. Also anyone know that my '03 has a plastic propeller? The GMB replacement I got is metal. Read that is was an updated design. Anyway I am back out to get the rest of the gasket off and start the flush with the cleaner. I feel like I'm going to be driving my other car still tomorrow.
 

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Discussion Starter · #63 ·
I got rainned out but I put everything together. I let it idle with the heater on. It got to operating temperature and the heater was still blowing cold. Also seems like I didn't get a good seal around the thermostat as it was leaking a little. I don't know what's going on now. When the water pump and thermostat were off I put a hose in the thermostat opening and it was coming out of the water pump hole so I don't think there is heavy blockage. I was also able to get water to flow out the bottom of the radiator and I cleaned all the hoses and they all looked good with no cracks. My belt is still tight, heck I had a hard time stretching it back on. Other than being a DOA water pump I don't know what could be wrong. Oh I also touched the hoses when it was running, the upper was HOT and the lower was cool. No flow through the radiator, also checked with the radiator cap off and it was just sitting there. Going to remove the thermostat just to see if water will start flowing. Then will take back the water pump for a replacement.
 
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