A defective fuel pump check valve (which maintains fuel pressure in the system when the vehicle is not running) may lead to long cranking times or hard starting (sometimes with stalling). The fuel pump should be replaced. However, if these symptoms are accompanied by Check Engine Light illumination, there may be a problem with the engine coolant temperature (ECT) sensor.
Hard starting due to leaking fuel pump check valve on Chrysler LHS
Average mileage: (–)
Engine affected: 3.5L V6
1 model year affected: 1997
2 people reported this problem
0 people shared problem details
does not leak when car is turned off.
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The fuel level sensors can wear out and cause erratic or inaccurate fuel gauge readings.