Northstar Engine 97 02 Overheating Issues 3 Areas Of Concern To Check

Northstar Engine 97 02 Overheating Issues 3 Areas Of Concern To Check B. bentley discussion starter. 7 posts · joined 2005. #1 · aug 5, 2007. someone who works on northstar engines said the overheating problem on my 1994 cadillac sts is due to one of 3 problems – a bad water pump, bad head gaskets, or a bum thermostat. i am looking for second opinions because he thought it probably was the head gaskets and. Change the oil, flush the coolant, change plugs and cables (ac delco 41 950 plugs only) do a block test. struts and shocks are roughly $800 a wheel for this car. check for oil leaks at the case halves, if weeping let it do so, if its leaking pretty bad youre looking an extremely costly repair.

Northstar Engine 97 02 Overheating Issues 3 Areas Of Concern To Check Northstar cadillac. Logged. #4. october 07, 2008, 02:25:29 am. ok, thats completely understandable then. it jsut seems that the early northstars up until 1999 seemed to more prone to these overheat head gasket leaks. i am wondering why the 2000's and on seem to run longer without these problems. Low coolant indicator comes on. coolant is refilled. engine overheats first time. coolant cap replaced by mechanic. coolant level indicator comes back on. engine overheats second time 4 months later. cooling fan replaced by mechanic. coolant level indicator comes back on again. mechanic says head gasket is leaking. I may have found my answer on another forum. can anyone verify this: "the thermostat is set to begin opening at 188 and fully open at 206. unless the hvac system is in auto, when fans run in slow all the time (a c function commanded on) the fans are controlled by the engine coolant temperature sensor and come on in slow at 224 and fast at 236.

Cadillac Northstar Engine Repair Problem Low coolant indicator comes on. coolant is refilled. engine overheats first time. coolant cap replaced by mechanic. coolant level indicator comes back on. engine overheats second time 4 months later. cooling fan replaced by mechanic. coolant level indicator comes back on again. mechanic says head gasket is leaking. I may have found my answer on another forum. can anyone verify this: "the thermostat is set to begin opening at 188 and fully open at 206. unless the hvac system is in auto, when fans run in slow all the time (a c function commanded on) the fans are controlled by the engine coolant temperature sensor and come on in slow at 224 and fast at 236. This was also due to the intricate engineering. you should consider avoiding the following models from the northstar engine lineup: 1993 – 1999 northstar l37. 1994 – 2002 northstar ld8. 2004 – 2005 northstar lh2. 2006 – 2009 northstar lc3. oil leaking was a major problem with the initial northstar v 8 from 1994 to 2001. Step 2. check your thermostat. the thermostat gauges the temperature of the engine to control the flow of coolant into the cylinder block and radiator. a faulty thermostat might not open, meaning coolant won't flow. this in turn will cause the engine to overheat. check the thermostat by starting your engine and letting it idle for a few minutes.