Question about 1995 Buick Skylark
I Have a 1995 buick skylark that overheats, so we replaces the thermostat which dind't help so just look it out and its ran great for 3 years now but I have no heat then, winter is coming and the car I use to drive in the winter I no longer have so need to get this fixed, any idea whats wrong with it??
There could be several resons for the overheating:
1. water pump doesn't circulate properly
2. Bad thermostst
3. fan clutch/radiator fan are non operative
4. relay is bad
5. clogged system
6. clogged radiator
to check on the the specific problem first power wash the radiator to remove bugs and road grime. they block the air from flowing over the fins and coil of the radiator thus not allowing the heat to disapate from the coolant. next install the good thermostat and make sure the spring part of the thermostat is facing down.next fill the radiator with coolant all the way up to the neck of the radiator and leave the cap off. next turn your heat setting to max fan and max heat temp. start the vehicle let the vehicle heat up and keep watch for the the flow of coolant soon as it goes down you should feel the upper radiator hose get real hot this indicates that the thermostat is working. now if you have a fan clutch for a conventional rear drive vehicle once the temp reaches 180 degrees the fan should no longer free spin it should start spinning faster if it is working like it should. if you have a transverse mounted engine for front wheel drive you will have a fan unit mounted to the radiator. these should be spinning when the engine reaches temp of 180 degrees. If they are not open the junction box and located the fan relay. switch out the relay with another one( I use the a/c clutch relay)if the fans kick on it's the relay that is bad, if it doesn't then either it's the fan unit itself or the temp sensor on the fan unit.now after you have done all these checks and everything is in order check the hoses going to the heater core at the fire wall they should be hot to the touch if they are not you have a clog at the by-pass of the water pump or manifold inlet.if the hoses are hot and you still have no heat then it's a bad valve inside the cab near the heatercore or a defective climate control module. check the fuse first to see that it is good.after the engine has been running a while the level of coolant should have gone down and then refill to proper level and replace cap after all of this if you still don't have heat and it overheats you have a bad water pump.... please rate this thanks
Posted on Sep 23, 2008
1: If you use a power washer too close to the radiator, there is a very good chance of creating leaks.
2: When you add coolant, it is sometimes necessary to jack up the front of the car and squeeze the top radiator hose continuously, to remove air pockets.
Some cars have a bleeder screw near the top water neck.
It is important to close the bleeder before releasing the hose, or you may **** air back in.
Posted on Apr 21, 2010
Hello this is andrew where is the junction box located on a 1995 buick skylark my car is doing what the gentleman car is doing but only i have heat but the fans dont come on to keep the radiator cool and i have already changed the thermostat.
Posted on Mar 01, 2010
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Posted on Jan 02, 2017
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