Wednesday, September 14, 2011

What would cause a 1998 chevy venture to still be overheating after i changed the thermostat? i ned help!!!!!!

The other day when i was driving it and I got on the brakes it went straight over to hot. Then when I took off it went back to about half way mark. Then once again when I slowed down or got on the brake it would immediately go back to all the way hot. I have already changed the thermostat because I was thinking that may have been the trouble, but it is still getting hot when I stop or slow down. But when I take off or give it a little gas it will go back to hot....can anyone give me some advice on what to maybe check next or how I can possible fix this? Thank you in advance for all your help.What would cause a 1998 chevy venture to still be overheating after i changed the thermostat? i ned help!!!!!!1. check radiator fluid level first - low fluid levels will give you crazy readings if not touching sensor with low coolant flow. 2. stop vehicle turn on a/c and go see if your cooling fans are coming on. 3 check for debri in front of the radiator and between the condensor.. To me what your are stating sounds like no are flowWhat would cause a 1998 chevy venture to still be overheating after i changed the thermostat? i ned help!!!!!!the water pump is badWhat would cause a 1998 chevy venture to still be overheating after i changed the thermostat? i ned help!!!!!!Well, when's the last time you had the coolant system flushed?

Youre most likey low on coolant, or your radiator and expansion tank and all of the hoses in the system are full of rust and junk. A good indicator is an expansion tank full of nastly looking rust and sediments.

You definately need to have the system flushed and fresh new coolant put in. After that, then replace the thermostat, and then check for a leaking water pump. Alot of the time if the water pump is the problem, you may just need a new gasket, and not a new pump.

Anyway, most folks agree you should flush the cooling system once per year to avoid this kind of problem.

I had a crown victoria that I neglected the cooling flush one year - I kept putting off flushing it. The next year the radiator became cloged with rust, the expansion tank was clogged with rust. And I ended up paying $400 or so to have the radiator services and the system flushed.



Anyway, good luck.

By the way, you can buy a bottle of radiator/cooling system flush at Walmart for about 5 dollars. Follow the easy instructions on the bottle, and you can save about 30-50 bucks by not bringing it into your local Jify Lube.What would cause a 1998 chevy venture to still be overheating after i changed the thermostat? i ned help!!!!!!HEAD GASKET! Just had the same problem with mine. We tried the thermostat still nothing. Finally we took it to a reputable mechanic. Costed us $1300.00. However make sure you have both gaskets changed or the other will go bad soon. My husband changed the front one then the back one went out a week later so they had to replace both. GOOD LUCKWhat would cause a 1998 chevy venture to still be overheating after i changed the thermostat? i ned help!!!!!!Check out this site



http://www.automotiveforums.com/t394967-What would cause a 1998 chevy venture to still be overheating after i changed the thermostat? i ned help!!!!!!I'm no mechanic, but you could suspect it would be a radiator fan not functioning properly. This same identical thing happened on my friend's Oldsmobile.