Question about Cars & Trucks
Have a compression test done to determine a head gasket or cracked head. Have a coolant system pressure test done to test for system leaks.. Check that a thermostat was installed correctly or was in fact installed as you need one to maintain correct flow rate to allow heat to move to the radiator fins and to the air flow.
Posted on Jul 28, 2013
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Posted on Jan 02, 2017
Try backflushing,if this doesn't solve the problem,..then it could be the distributor,they can make the car run hot if the are going out.
Posted on Apr 13, 2009
SOURCE: oil pump replacement
The pump is located in the pan you have to remove the transmission bolts out and raise the engine up with an engine stand and remove oil pan bolts and remove pump, it's quite a job.
Posted on Aug 14, 2009
I am assuming you have the Northstar engine.
Check for coolant flow at the Purge line,this is a common problem on the Northstar.
There is a small diameter hose coming from near the top of the coolant tank,this is the purge line.
With the engine idling,pull the purge line from the tank,if there is no coolant flow from this small hose,it is blocked and this will cause overheating.If the hose is clear, check for blockage at the nipple on the tank.
Are you running it without a thermostat? If so,then strangely enough,this will cause overheating as the Northstar cooling system is different to most conventional systems and therefore will not help you diagnose the problem.
Posted on Aug 22, 2009
flush your radiator first.with the thermostat out you should see the water moving if not bad water pump.this engine needs the thermostat to function properly and either a 50/50 coolant or straight coolant so it does not boil over.also make sure your fans are coming on
Posted on Oct 04, 2009
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Fig. Water pump assembly-4.6L Northstar engine (click image for zoom)
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Fig. Remove the water pump adjuster pulley retaining bolt and
Fig. Remove the water pump retaining bolts
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