Summaries to solutions for vexing mechanical issues

By ALLDATA Tech-Assist Team

Here’s a compilation of some of the “Tech Tips” ALLDATA compiles as its Tech-Assist Team helps technicians tackle vehicle issues. More detail on these tips — including marked-up schematics, images and recommendations — are searchable in the “ALLDATA Community” (https://www.alldata.com/alldata-community).

Dodge Durango cranks, but does not start

Problem: A 2006 Dodge Durango (2WD, V6-3.7L, VIN K, automatic transmission) with 236,009 miles was towed in because the engine would crank over but not start.

Details: First, the technician checked for spark and fuel pressure. The spark was strong; the fuel pressure was within specifications. Next, he checked fuses and the ASD relay. All the fuses were good and the ASD relay was working properly. He then connected a noid light to check injector pulse. There was none.

He connected a scan tool next to expand the diagnostic testing. The scan tool showed that the engine cranking speed was 223 RPM so the crankshaft position sensor was working properly. The technician also noted that there were no diagnostic trouble codes (DTCs).

An ALLDATA Tech-Assist consultant suggested testing for battery voltage at the…

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