Engine was overheating,changed thermostat,but keeps pushing coolant out of overflow. how do i tell if my water pump is bad? or if thats even the problem?
Your radiator could be glogged and causing it to back up out of overflow,drain coolant,if still good,save and remove bottom hose from radiator get hose and insert in radiator and let run and see how flow is,if clooged,go to autozone and tell them what is happening and they will get you what you need to unglog .To check water pump,unscrew radiator cap and put over opening,crank engine,let it get at operating temperature,remove cap and check flow.Click on link to view radiator flush. http://www.autozone.com/autozone/accessories/Fluids-and-Chemicals/Radiator-Cleaner-and-Additive/_/N-262g?filterByKeyWord=radiator+flush&fromString=search
SOURCE: 93 lexus gs 300 overheats. i changed water pump,
Try blowing the radiator fins out (from the inside) with compressed air--bugs and other debris can clog the air flow. Do the radiator fan(s) run when hot? If not, check for blown fuse, seized fan motor(s), bad relay, or bad engine thermal sensor. Is it losing coolant water from somewhere?
SOURCE: I had a new water pump and timing belt put on my
could be the head gasket gone, if you take it to a garage they can do a test on it which will take about 10 minutes, if you are leaking water but not on the floor there is a good chance its going into the exhaust which will cause steam(white smoke) out the exhaust
SOURCE: i have a 91 lexus ls400 and its overheating. the
would have repaced the thermastadt. most commen cause of those fans not turning on because thr thermostadt is not letting the hot water flow into the radeattor .by passing the wiring and relays can only lead to bigger problems , but you have proven your fans work. water just drizled out of the block cause you had no water in the house to the pump ( no water to pump) thermostadts, temp sensors or temp sending unit .simple check for themostadt fill up with all houses attached with rad cap off run engine fill rad as needed keep feeling top hose to radiator it should get hot all of the sudden thats your thermostadt opening( working) go to next step check sensors or sending unit. realy best if you get a haynes or chilton at the half priced book store or auto parts storeand go to trouble shooting for over heating
SOURCE: step by step instructions to change starter/94 Lexus LS400
The starter on the 4.0L engines is located underneath the intake manifold. Therefore, both the upper and lower intake plenums need to be removed to access the starter.
You must also replace the intake gaskets once they are removed and retorqued to Lexus specifications.
SOURCE: 1993 lexus gs300 keeps running hot. CHanged
compression test most likely blown head but first why did you change all this stuff if the cause was overheating then am suspecting a blown head gasket
Dodge Dakota stalls, stumbles at idle. Has low fuel flow and
runs hot?
http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html
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http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html
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http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html
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Multiple problems on car: Car runs hot, A/C blows hot and
car starts surging?
http://schematicsdiagram.blogspot.in/2012/04/multiple-problems-on-car-car-runs-hotac.html
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There
are many possibilities for car overheating.
Faulty
thermostat clogged radiator/plugged radiator, radiator hose worn out. Coolant
running low. Low coolant pressure. Faulty temperate sensor.
I
suggest you to go through the troubleshooting details mentioned in the link
below:-----
All types of car overheating problems and troubleshooting?
http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
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These will help.
Thanks.
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