Colling system nightmares... Jason's after my car...

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Ferendon

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This is making me mad. Gradual coolant loss for the last couple months. After a high rev run, I parked my car, and smoke was bellowing out. Smelled strictly of coolant, and I was it running down the side of the engine along the side of the waterpump, and down onto the pulleys to subframe, to ground. I got underneath to make sure it was just coolant. But low and behold, I see "smoking" drops hitting the ground. The coolant was dripping normally (the coolant's not the problem). But the smoking drops where dopping every few seconds and very irratically. They left and trail of white smoke behind them. I was thinking maybe it was coolant running off the cat... Like it had been on the side of the engine for a second, cooled a little and hit the cat and burned up as it hit the ground. Well today on my way to school, I started running hot. It got up to the top of the "N", and then cooled down to about the top to middle of "O". Then it ran back up to "N" again. But it never actually got above "N" completely. Well, when I got here, I popped my hood, and heard what sounded like a shaken soda being opened slowly from the passengers side of the engine, kinda like it was below the crossover tube. I pulled the red tab on the radiator cap and bled off the pressure, and as the pressure released, the sound quieted.... When the pressure was bled off the noise was completely gone. I was already planning on replacing the gaskets in my water pump, seeing as how there was coolant coming from the water top or side of the pump, like a bad gasket would do. But do you think maybe the t-stat is not opening properly and caused too much pressure on something? I'm not to clear on the technical stuff on how the cooling system works... Any input would be greatly appreciated, as this is my daily driver. I have tomorrow off, and I'll be working on it.
 

Ferendon

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I was praying to hear something like that... I didn't want someone to come in yelling "cracked head or block" and AutoSHO frankly, I've grown to respect your opinion. You're pretty good with stuff... :D
 

Ferendon

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Do I have to pull both halves to get to it? I got the felpro kit from O'Reilly, and it says it has 2 o-rings and a 2 gaskets, but it actually has 3 o-rings...
 

AutoSHO

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I did not pull the crossover tube out. I haven't seen many (any) leak at the other end. Make sure you clean out the water pump housing where the O-rings slide in, and lubricate them as well. I used a very light film of vaseline to allow the parts to slide together easier. Also, I pulled the water pump out complete.

I would recommend replacing both gaskets on the water pump (inlet and pump halves) just to make sure you do not have any sources for leaks. Take the time to clean all mating surfaces very thoroughly so that you don't do the work twice.
 

Ferendon

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Appreciate it man. You've been very helpful... I'm gonna rip it apart tonite, and clean it, and reconstruct tomorrow morning. I might do the tstat as well anyways, and a coolant flush. Cause earlier on my way home from school, the gauge was rising to the top of the arch, and when I pulled the relief valve on the rad cap nothing happened. No difference in coolant level, and no coolant on the engine, and no smell.
 

AutoSHO

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Its not a bad idea to replace the radiator cap too if you haven't recently. Make sure you do not overtorque the Water Pump Housing bolts!!!
 

Ferendon

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LoL the red tab on it looks like pumice. I'll take a pic and post it. It's the most laughable thing in the world. I looks like a peppermint after you have it in your mouth for abotu 15 minutes (lots of little holes and real brittle.)
 

MOSHO92

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The hissing sound/air pressure was most likeely caused by a lack of coolant in the system. Once the coolant level gets low enough, circulation stops and pressure can begin to build.

You should keep an eye on the coolant level and keep it toped off (with water for now) until you get this fixed... You dont want to run the risk of overheating the engine. :eek:

Check prices for a new or rebuilt waterpump... It may be the pump bearings rather than just the gasket.

One last thing.... If you are going to go in there and replace the pump/gasket you might also want to consider replacing the crankshaft position sensor. These often fail because of a leaking water pump driping on them, and you dont want to be left stranded on the highway.
 

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