Question about 2001 Cadillac DeVille
4.9 engine: remove negative battery cable from battery,follow top radiator hose from radiator to top of engine,look to the left of the hose and you will see the tempature sensor. sensor is left of thermostat housing
Posted on May 15, 2009
Do a google search for 96 cadillac deville Air temp sensor, you should come up with several parts. I replaced mine on my 01 deville in about 10 minutes, the parts were $30 with shipping. the sensors just snap together on the harness.
Posted on May 19, 2009
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Posted on Jan 02, 2017
SOURCE: 96 cadillac deville overheat
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.
Posted on Aug 23, 2009
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