Question about Cars & Trucks
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Posted on Jan 02, 2017
SOURCE: 02 jeep grand cherokee 4.7 eng
Hook up a manifold gauge (mechanical temporary use gauge, used by mechanics) and test the oil pressure. You probably need to replace the gauge. The computer sends info through a printed circuit board behind gauge cluster and sometimes you have to replace the whole gauge cluster.
Posted on Feb 06, 2009
I don't know if this will help anyone, but i had a issue with my jeep running hot and check engine light coming on as well. After alot of trips to different shops - the last one found that there were two senors in the engine for the fan that need to be changed. Everyone would aways fine the one up top but not the second one. After that, have not had any other problems like it since.
Posted on Mar 23, 2009
Throttle Position Sensor (TPS) is connected to the throttle shaft on the
throttle body. It is a potentiometer with one end connected to 5 volts
from the VCM and the other to ground. A third wire is connected to the
VCM to measure the voltage from the TPS. As the throttle valve angle is
changed (accelerator pedal moved), the output of the TPS also changes.
At a closed throttle position, the output of the TPS is low
(approximately 0.5 volts). As the throttle valve opens, the output
increases so that, at wide-open throttle, the output voltage should be
approximately 4.5 volts. By monitoring the output voltage from the TPS,
the VCM can determine fuel delivery based on throttle valve angle
Fig. 1: Common Throttle Position Sensor (TPS) wiring diagram (wire color, terminal identification/location may vary on certain models)
In addition, I send you some wiring diagrams that coud helpful (click image for zoom)...
Fig. 7: 1996 GM 4.3L Engine Schematic
Fig. 10: 1996-1997 GM S10/Blazer Chassis Schematic
Hope this helps.
Posted on Jul 28, 2011
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