In this video I go over how you can perform a no crank no start diagnosis, whether all you hear is a click or even if the battery tests good but won't start..... Chevrolet S10 Pickup Truck PCM; Chevrolet Silverado 1500 Pickup Truck PCM; ... the vehicle may not start at all. Of course, there are other reasons a car may not start, including a bad starter or a blown alternator. ... 1991 Nissan Sentra 1.6L PCM / ECM / ECU REPAIR SERVICE ONLY. $179.00. SEE DETAILS. 2008 Jeep Patriot 2.4L 4 Cylinder Gas PCM. Try some starting fluid sprayed into the engine, then crank it. If it fires up and runs a few seconds, you know it is a gas problem. The definitive test for a bad pump is to check for power on the pump wire at the gas tank connector, when the engine is cranking over. If power there and no pump, the pump is bad. "/>1991 chevy s10 crank no start