Trooper (2 Door) V6-3165cc 3.2L SOHC (6VD1) (1993)
Chart A-3 (Part 2 Of 3) Engine Cranks But Will Not Start
Test Description
Numbers below refer to circied numbers on the diagnostic chart.
1.
This will check the injector harness for an "open" or "shorted" circuit after the engine harness connector.
2.
A shorted or resistance injector could be the cause of a "cranks but won't run" symptom.
3.
Test for a short to ground in the injector driver circuits.
4.
Check for voltage at the injector. An "open" in the RED/GRN wire at the splice from the main relay would result in a "crank but won'f run
symptom.
5.
Test the engine control module for a injector pulse.