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2002 Chevy Venture keeps overheating
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Megan19
New User
Dec 27, 2009, 9:11 PM
Post #1 of 8
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2002 Chevy Venture keeps overheating
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Year:2002
Vehicle:Chevrolet
Model:Venture
Engine Size:3.4
Mileage:137,935
2002 Chevy Venture keeps overheating
Last week we had to replace intake manifold gasket,water pump,thermosat,coolant tempature sensor,flush coolant system and still is overheating.
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Sidom
Veteran
/ Moderator
Dec 27, 2009, 9:22 PM
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Re: 2002 Chevy Venture keeps overheating
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What was the original problem that lead to those repairs? Was it overheating like this before the repairs?
If not I would make sure you don't have an air pocket in the system. Also how long does it take before it starts overheating?
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Megan19
New User
Dec 27, 2009, 9:31 PM
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Re: 2002 Chevy Venture keeps overheating
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Before we got the repairs it was overheating and that is why we took and got a diagnositc job and it said to repair all of those problems. It takes 10-15 mins to overheat. now since we have repaired all of the work it still is overheating and also when it overheats the heat stops working it throws cold air.
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Sidom
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/ Moderator
Dec 27, 2009, 9:42 PM
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Re: 2002 Chevy Venture keeps overheating
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Just going off what you've posted the 1st thing I would want to eliminate is exhaust gases getting into the cooling system. The system needs to be block checked either by chemical testing or with an exhaust gas analyzer. If there is a head gasket issue going on, it could be causing both of the problems you are experiencing.......
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Megan19
New User
Dec 27, 2009, 9:47 PM
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Re: 2002 Chevy Venture keeps overheating
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is there a posible chance it could be the heat core or radiator??
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Sidom
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Dec 27, 2009, 10:09 PM
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Re: 2002 Chevy Venture keeps overheating
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Anything is possible. Just some things are less likely than other things. With heater cores, when they get plugged, you get no heat, all the time. They don't work sometimes & not others times. The same with radiators, it's possible that it has got restricted so badly it's overheating within 10 to 15 minutes of start up, but then again this is usually a slow progression failure, meaning you would've noticed problems for a while, starting at high higher speeds and/or heavier loads & progressively gotten to this point......
The 1st thing I had mention was an air pocket and that would be the most likely problem, especially on this type of system, very easy to get an air pocket in it, especially if an air lift tool wasn't used to fill it.... Once it's been confirmed there is no air in the cooling system, due to the nature of the problem, the next logical step would be to block test it.......
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Megan19
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Dec 27, 2009, 10:15 PM
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Re: 2002 Chevy Venture keeps overheating
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thank you for all your help
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Sidom
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Dec 27, 2009, 10:19 PM
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Re: 2002 Chevy Venture keeps overheating
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You're welcome
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