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Chevrolet Blazer Engine and Performance Problems

140 messages,  Last post on Aug 25, 2009 at 11:27 AM

You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester

What is this discussion about? Chevrolet Blazer, SUV


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#128 of 140
97 chevy blazer not starting by nightauditor2
Dec 26, 2008 (1:55 am)
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97 chevy blazer started fine but after filling tank it would not start it cranks strong and every thing was working except the idiot light . i had the key in the on postion while i was waiting for help to arrive and the lights came on and it started just fine. turned it off and the same thing happened after about five min. the next time i turned it off the lights did not come on and it will not start
#129 of 140
Re: 97 chevy blazer not starting [nightauditor2] by sealteam8
Dec 26, 2008 (2:17 pm)
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Replying to: nightauditor2 (Dec 26, 2008 1:55 am)

It could be a number of things. Like a fuel filter or fuel pump. or ignition coil. Check to see if you have the three basic needs. fuel, spark, and of course you will have exhaust... The spark should be bright blue. not orange! and fuel pressure should be around 62 pounds with the key on and engine off. and 60 pounds with the key on and the engine running. let me know!
#130 of 140
help w/ blazer!!! by kalani1
Dec 28, 2008 (5:40 pm)
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My car wont start. It turns over but thats it. Not the battery as I just replaced it and like I said it turns over. I was snowed in for 10 days and 2 days ago tried to get out-my car was fine and it started but ice and snow was too thick so all it did was spin the tires but I think it affected the engine because e tried for about an hour and only got 4ft!!!!!!
The car was missing alot about 2 weeks ago and suddenly stopped. I have been told it is the fuel filter or pump??? I am new here and will have to get it towed in the morning but also dont want to get taken advantage of. Any ideas??
#131 of 140
Coolant Leak-2001 Chev Blazer by uniqorn2009
May 28, 2009 (6:37 pm)
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In March, I had to change my radiator. It's been running fine until a couple of weeks ago. I parked my blazer and notice water running from under the car. It was coming out just in front of the oil pan. It didn't overheat or anything. I check the fluid and noticed that it wasn't any antifreeze which I purchase and gave to the shop but water. Also it look like stop leak was still in the radiator. I figured that the stop leak was in the motor from the bad radiators leak before I bought the vehical. But I can't find the leak. I can smell it when I drive for awhile and the temp goes just to the 200 degree range but doesn't overheat and now my check engine light is on. There isn't any water in the oil but I did notice water in the exhaust and it was 91 degrees today. Is there anywhere else it could be leaking at?
#132 of 140
Re: Coolant Leak-2001 Chev Blazer [uniqorn2009] by jlflemmons
May 28, 2009 (7:37 pm)
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Replying to: uniqorn2009 (May 28, 2009 6:37 pm)

Could be a water pump leaking, or possibly the intake manifold (a fairly common problem on these engines). If the water pump, you should be able to see water coming out around the shaft. I have been told that with the intake manifold you will find antifreeze in the intake valleys.
 
What code has been set? Autozone will check for you.
#133 of 140
Thermostat housing by duntov
May 29, 2009 (3:37 am)
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It is likely the water pump leaking. The water pump has a hole in the casting under the impeller shaft which will leak if a water pump bearing seal fails. That indicates that the wtaer pump needs to be replaced.
 
Another more common source of a leak is the thermostat housing to intake manifold gasket. Sometimes they leak a little after they have been replaced until the gasket swells and seals. Especially if the gasket was installed wihout any Permatex High Tack sealer or it was tightened incorrectly or not tightened enough. Many car owners or shop technicians will not tighten those enough after the thermostat has been replaced and the two thermostat housing bolts will need to be snugged up a little to stop a coolant leak. The aluminum thermostat housings are easy to break if they are overtightened. I wish shop technicians were as cautious with oil pan drain plugs.
 
Other common sources of coolant leaks from the front ot the engine are:
 1.) Upper radiator hose to thermostat housing connection.
 2.) Lower radiator hose to water pump connection.
3.) Heater hose connections to the water pump and intake manifold. .
#134 of 140
Re: Coolant Leak-2001 Chev Blazer [jlflemmons] by uniqorn2009
May 29, 2009 (12:54 pm)
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Replying to: jlflemmons (May 28, 2009 7:37 pm)

I'll try to see if it's the intake manifold. Autozone stopped checking codes for you
Thanks for your help
#135 of 140
Re: Thermostat housing [duntov] by uniqorn2009
May 29, 2009 (12:57 pm)
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Replying to: duntov (May 29, 2009 3:37 am)

the motor is so tight I can't hardly see anything in there. I was thinking maybe it's the engines drain plug that has worked itself loose.
 
Thanks but it more than likely a intake manifold problem
#136 of 140
Re: Thermostat housing [duntov] by jlflemmons
May 29, 2009 (9:19 pm)
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Replying to: duntov (May 29, 2009 3:37 am)

2001 4.3L engine does not use a thermostat housing gasket. The thermostat itself has a heavy rubber seal that compresses between the housing and the intake manifold and uses no sealer.
 
My bets are still on the water pump.
#137 of 140
Re: Thermostat housing [uniqorn2009] by jlflemmons
May 29, 2009 (9:21 pm)
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Replying to: uniqorn2009 (May 29, 2009 12:57 pm)

You might try reaching around to the underside of the water pump and see if you get antifreeze on your hand. I would definitely check that before going after the intake manifold.

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