SHOWING IT'S GETTING HOT ??

2005 Buick Rendezvous

Tiny

colonamaxwell

September, 14, 2012 AT 12:53 PM

I have a 05 Buick Rendezvous , when the fans kick on the temperature gauge goes up to about 3/4 then when the fans kick off temperature gauge goes back down to about 1/4? Not sure what the problem is? Took it to have a diagnostic test done on it and it’s showing that the motor is not getting hot at all , it’s at 216, what it calls for, only other problem that showed up on the diagnostic test was the oil sensor,
also having problems getting the vehicle to start, doesn't want to start without giving it a little bit of fuel? Then it starts up? Parts replaced so far, A new Thermostat, A new temperature sensor, Fuel Injector, Idle Control Valve, Throttle Position Sensor. Please help !

FOUND 1053 RELATED QUESTIONS

4 Answers

Tiny

ASEMaster6371

September, 14, 2012 AT 1:15 PM

Did you have the radiator flow tested? It may be clogged.

Get the fuel pressure checked on start up.

Roy

Tiny

KHLow2008

September, 14, 2012 AT 1:40 PM

Symptoms indicates the gauge is giving a false reading and the most likely cause is a poor ground circuit connection.

The other possibility is a bad ECT causing the wrong reading and difficult starting.

A bad oil sensor can cause difficult or non starting as the PCM is programmed to cut off engine when oil pressure drops.

Which engine do you have?

Tiny

colonamaxwell

September, 22, 2012 AT 3:30 AM

Okay thank u, sorry it's been so long, it's a 3.4

Tiny

KHLow2008

September, 22, 2012 AT 9:16 AM

Get the oil pressure switch problem resolved first.

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