Question about Jeep Wrangler
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Posted on Jan 02, 2017
check foe fuel pump presure at fuel rail,,,if u have fuel pump presure check all fuses with a test light not buy sight,,could be deceviving ,look at and check to see if fuel pump relay is working if no fuel presure i,if u have presure in fuel rail ,replace the cranck shaft sensor
Posted on Jul 03, 2009
this sounds like a fuel problem.try changing the fuel filter and check the fuel pressure to se if it falls within the manufactures specs.
Posted on Oct 21, 2009
Testimonial: "Will try this tomorrow. Thanks so much."
Put a volt meter across the battery terminals while the vehicle is running. You should read no less than 12.5 volts at idle with no accessories running and no less than that with accessories all on. Normal volts should be around 13.5. Aside from slight fluctuations, the voltage reading should not steadily drop, regardless of how long it is running. I doubt if you have a system drain if it's shutting down while driving...the alternator would compensate for that. Some charging systems incorporate the voltage regulator into the computer. If the alternator checked good by itself but the tests I recommended show otherwise, likely your problem is with the computer.
If the engine does not need to be jump started after it shuts off, you may be looking entirely in the wrong place...but you didn't mention that part!!
Posted on Oct 21, 2009
Testimonial: "Very helpful. The voltage meter read 12 and then 14. The shop I called suggested that it may have something to do with the sensor. Taking to shop"
That or the wiring to it is shorted at some point. Remove the connection at the center back of the socket and replace the fuse--if ok, replace or repair the socket. If still blows fuse, check the wire you removed for damage near any metal object.
Posted on Nov 11, 2009
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