Question about Vehicle Parts & Accessories
I need to replace the thermostat in my 2001 Cadillac Deville with Northstar engine. I am having cooling problems & my heater don't work
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Posted on Jan 02, 2017
my husband did everything that everyone else did that had this overheating problem. It was so weird that my engine cooled at a light and heated up going down the road. I have a north star 4.6 engine and this is natorious for happening. my check engine light also came on and so I had a diagnostics done which told me my #1 injector wasn't firing , car ran like **** as well. After putting in a new water pump and plugs,ect. and realized injector was good a friend told him we could have a blown head gasket. So just to see if this was the problem I went to buy a bottle of glassbeads and the auto parts guy told us to purchase a bottle of BARS STOP LEAK BLOCK SEALER NOT RADIATOR BUT BLOCK SEALER $31.99 . He followed the directions and we waited 24 hrs. before driving it. What ever the problem was has stopped my car runs like brand new and I am loving it again. no over heating no injector problem, runs great.......I hope this helps. I know its probly a temperary fix but its a fix and now we know what the problem was. SASSY
Posted on Mar 19, 2009
The oil life resets to zero after the engine overheats. Check for external leaks first, make sure the water pump belt is still there and turning. The most likely cause if the car has over 70,000 miles is head gaskets.
Posted on May 18, 2009
4.6 Northstar V8. It is located on the rear of engine (driver side) in front. It is 1n the the waterpump housing cover. Remove airbox and intake tube and bottom radiator hose. 2 bolts(believe 10mm) on thermo housing. These systems are a lil finiky about air pockets....so fill slowly and let run at idle until operating temp and let cool and chk level.....fill as needed and repeat if needed.
Posted on Jul 06, 2009
The knock sensor is located under the intake manifold.The starter is also located under the intake manifold.Hope this helps.Good luck.
Posted on Jul 21, 2010
Testimonial: "it was helpful informations,appreciate that."
The northstar engine uses chain driven cams that eliminates the need to replace timing belts.
Thank you and enjoy,
Posted on Aug 09, 2010
Testimonial: "Thanks for the quick answer.One less thing to worry about!"
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