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2001 Chevy Tracker Overheating

Old 01-24-2018, 09:12 AM
  #21  
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Originally Posted by Fish_DOut View Post
Sounds like the water pump not moving enough water
X2, especially if both radiator hoses are warm. If one is cold, then it's the thermostat, but my bet is on the pump itself.
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Last edited by bamaboy473; 01-24-2018 at 12:20 PM.
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Old 01-24-2018, 10:14 AM
  #22  
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Originally Posted by Craash420 View Post
Getting nervous, my wife is eyeballing a Prius. I love the idea of 50 mpg but I don't want any other THTers to confuse me with a blowboater!

...
Just get a bumper sticker that says "My other car is an F-350" and it will all be good.
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Old 01-24-2018, 11:23 AM
  #23  
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tip of the cap from a fellow chevy tracker owner
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Old 01-27-2018, 12:03 PM
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Originally Posted by DirtyMikeAndTheBoys View Post
tip of the cap from a fellow chevy tracker owner
Back at ya', but at this rate I'm not sure how much longer I'm going to be an owner. I miss my Ramcharger, my back hurts from hunching over all day and with that beast I barely had to lean to work on the engine..

With all the symptoms I was 90% sure it was the water pump, I let the engine eat up without the radiator cap and the water really didn't seem to move, and the hose by the thermostat stayed cool.

Got a replacement pump, fought the good fight trying to pull the old one, realized I had to drop the AC compressor... and the impellers look fine and everything seems to spin properly.

I know it's only $70 but that's money that could be spent on a day busting clays, should I bother installing the new pump or return it? Is there a way to test / check the old pump now that it's removed? WTF am I missing?!
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Old 01-27-2018, 12:31 PM
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Is there an air bleeder on or near the thermostat housing?
It will about a 10mm hex with a short tube sticking out the top

If so fill the system and let it run,open bleeder a half turn while rad cap is off
You will get air,continue adding coolant slowly,
Leave it open until you get a steady stream of coolant coming out of the bleeder

If you have a pocket of air in the system it will cause your symptoms
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Old 01-27-2018, 01:03 PM
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Originally Posted by Craash420 View Post
Back at ya', but at this rate I'm not sure how much longer I'm going to be an owner. I miss my Ramcharger, my back hurts from hunching over all day and with that beast I barely had to lean to work on the engine..

With all the symptoms I was 90% sure it was the water pump, I let the engine eat up without the radiator cap and the water really didn't seem to move, and the hose by the thermostat stayed cool.

Got a replacement pump, fought the good fight trying to pull the old one, realized I had to drop the AC compressor... and the impellers look fine and everything seems to spin properly.

I know it's only $70 but that's money that could be spent on a day busting clays, should I bother installing the new pump or return it? Is there a way to test / check the old pump now that it's removed? WTF am I missing?!
Water pump. Often when bad they leak. When the accessory belt is removed you can feel the play in the pulley.
REPLACE IT... (water pump)

I just replaced My FIL water pump & T-stat, just a hour & one beer ago.... 2001 Nissan Frontier 2.4 engine
My FIL's didn't look bad, had a good arsed looking Impeller/seals the whole 9 yards... For some dern reason, It wasn't pushing enough Coolant?!
I've been a mechanic over 20 years & seen *almost new* water pumps just fail!
If your tracker overheats did it also toss you a OBD code? they normally do.. Water temp circuit code..
AND you didn't install your new T-start "backwards" did ya?
I'm just askin, I've SEEN it done... By a backyard Mech to have the exact problem your describing..
Keep us posted...
BTW gotta love those Nissan;s 2.4 engines..
Water pump & t-stat = 2 hours... R & R,,, My pay? a 12 pack of Bush Ice..
It's My FIL afterall..
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Old 01-27-2018, 06:03 PM
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Replace the pump.
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Old 01-31-2018, 12:59 PM
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SUCCESS!
After many YouTube videos, a couple busted knuckles, and a few bruises we're back up and running. I installed the new pump and drove around the neighborhood for a few minutes and then took it out to the main road, temp gauge went up to the half-way mark as usual and stayed there. Today was the first day we drove it to work (~15 miles) and there were no issues. I don't know what was wrong with the old pump but the new one did the trick.

Originally Posted by crossthread View Post
AND you didn't install your new T-start "backwards" did ya?
When I read this I was really worried for a minute, I had to go out and check! Fortunately that's actually impossible with this engine, the t-stat housing is too small for the t-stat to fit in backwards.

Thanks for all the help!
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Old 01-31-2018, 01:06 PM
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Good work! Chevy Trackers are awesome, mine is basically a pack mule and will go anywhere. 4wd, convertible top, great gas mileage. My truck went into the shop this summer and I was in a bind, Was able to fit multiple 8' sheets of plywood in through the back window. Pics to follow if I can figure it out
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Old 01-31-2018, 01:34 PM
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Glad you are up and running.
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Old 02-05-2018, 12:50 PM
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Well, Hell!

Friday night my wife was out shopping and calls me in a panic, the steering isn't working right and the battery light is on. As I suspected the serpentine belt is shredded and wrapped around the fan. I muscle it into a parking spot and then go explain the situation to the manager, I'll be back in the morning with tools and a new belt. I assumed I just didn't install the belt properly after I replaced the water pump, no big deal.

I install the new belt and drive home, no problem. Drive it around the neighborhood, no problem. Drive to work today, PROBLEM! The belt started to part, pretty much peeling off one of the strips. I cut the loose bit off and hoped we could make it in to work, about half a mile before we get there it gave up the ghost but we limped in to the parking lot just as steam started coming from under the hood.

Lunch break, and AutoZone is less than a block away from my office. Installed the new new belt and as soon as the engine starts the belt comes almost half way off the tensioner pulley and alternator. The tensioner pulley has plenty of spring to it but doesn't seem quite lined up with the rest. Suggestions?
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Old 02-05-2018, 01:06 PM
  #32  
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Did you look at the harmonic balancer pulley like I mentioned? I bet the outer ring is sliding in and out. You should be able to reach down there with a large screwdriver and see if just the outer ring will pry in or out. I bet it's walking in and out.

Jay
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Old 02-05-2018, 01:46 PM
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Also with the belt off, hand spin all the pulleys and give each a good firm wiggle. Each should turn silky smooth and have almost zero play. Any one being sloppy will cause this. And check the torsional damper as described above.
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Old 02-06-2018, 07:27 AM
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Originally Posted by JayLeto View Post
Did you look at the harmonic balancer pulley like I mentioned? I bet the outer ring is sliding in and out. You should be able to reach down there with a large screwdriver and see if just the outer ring will pry in or out. I bet it's walking in and out.

Jay
Rock on, you called it! The rest of the pulleys spin freely with minimal play but that sucker wobbles like a drunken sailor. Even a rookie like me should be able to tackle it, too bad no local parts stores have it in stock. Napa and Autozone can't get it' O'Reilly's can but not until Thursday and for nearly $200. Time to search Amazon and eBay!

Thanks again for all the input.
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Old 02-06-2018, 07:51 AM
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That's what I thought from the beginning. It happened to my hunting truck. The rubber bond has broken between the balancer and outer ring (pulley). It will work most of the time, but on occasion when the motor is really warm it will slip. Since that drives the water pump it will instantly overheat. When you remove the balancer the pulley will likely slide off.

I changed mine in about an hour, but it's not easy. Breaking loose the crank bolt was very difficult. I ended up using a long breaker bar with an impact socket. I wedged that against the frame rail, and bumped the starter to loosen the bolt. We tried other ways, but it's the only thing that worked for us. I didn't want to pull the radiator to be able to use an impact.

Jay
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