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1989 Dodge Colt Repair Question


Topics covered: Engine, Sensor, Fuel pressure.
Mileage: 153,000 miles.

Asked on February 12, 2011

Problem

After apprx. 10miles the engine coughs and dies. It will crank but wont start there was black smoke sometimes as it died. Then after cooling down will start and may run for ten or twenty miles. This repeated several times then the engine quit and a burning smell was noticed and the engine would not run again.The computer and the altitude sensorr were found defective and replaced. after approximately 1000 miles
the problem seems to have reappeared.
Avatar Asked by stanley spence

Answer

Replied on March 19, 2011

Probable causes of an engine running rich are as follows:

1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.

Tiny Answered by rasmataz
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