Question about 1989 Ford Bronco
Both these sensors share the same ground or power supply i would check that first before replacing them
Posted on Dec 09, 2012
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Posted on Jan 02, 2017
I have a 351 but they are common sensors and should be located same places. ATC is on the side or bottom of the air intake filter box. The CTS should be located on the goose-neck where your Thermostat is housed; this is comming off the intake mannafold and into the radiator.
Posted on Oct 03, 2008
i would check to see if the stat is working right, do you have rear heat on this vech? . if you do you may have a air pocket, the windstars have a metal tube coning from the water pump that gose to the heater core lines for the rear heat and they like to fail. they get a pin hole leak that hard to find, the water pump also likes to fail also, not moving a enough fluid under load the ends of the inmpler wear down
Posted on Dec 23, 2008
The coolant temp. sensor you replaced - was the new one plastic or metal? There is a reported very high failure rate in the plastic sensors, and it is recommended that you go back to the metal style. Check the signal wire for the sensor - it should be less than .7 volts. If it is out of range, replace the sensor with a metal one.
It could also be caused by excessively high fuel pressure - caused by a sticking fuel pressure regulator, or a restricted fuel return line.
If you are able to check fuel pressure, it should have 35 - 45psi with key on, pump running - and 30 - 45 psi idling
Let me know how you make out!
Posted on Mar 30, 2010
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