Having problems with your 1987 Ford Ranger ?
Vehicle cuts out and even backfires (blacksmoke) when driving down road does not die just does not run smooth. Changed oil twice oil is black, fluids to help clean, pluggs are good, wires are good when it runs good it runs real good.
If it seems to run better when it's first started (cold) and gets worse as it warms up. You can try disconnecting the coolant temp sensor and jumper the terminals in the connector (wire side) with a paper clip. The coolant temp sensor is either in the intake manifold or the thermostat housing and has a 2 wire connector. Jumping the connector will make the computer think that the engine is hot (warmed up) and will not richen the system. If doing this helps then replace the coolant temp sensor. Hope this is helpful.
Repair Help & Product Troubleshooting for 1987 Ford Ranger
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