1991 Ford Ranger XLT 3.0 OBD Port
 

Hello I need help I can not find the OBD Port it is not near the fuse block.
My ranger was running cold so I put in a new thermostat and now I have good heat but soon as it warms up it stalls and will not restart until engine is cold. I unplugged the temp control still no luck.

Check near the blower fan housing assembly. There are 2 plugs, a single wire square one and a 5 terminal trapezoid shaped plug. If I recall, it only has 4 wires

Re: 1991 Ford Ranger XLT 3.0 OBD Port
 

Thanks nothing there the only thing I can find is on the drivers side mounted next to the radiator is a large plug with a grey plug on top of it.

Pic ?

Re: 1991 Ford Ranger XLT 3.0 OBD Port
 

obd1 under hood on my 1992, passenger fender over tire

Re: 1991 Ford Ranger XLT 3.0 OBD Port
 

Thank you all found it, could it be the temp sensor once warm the truck bogs stalls and will not restart till cold

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Thanks found it could the temp.cancer be bad when warm truck bogs stalls and will not restart till cold runs fine cold

Re: 1991 Ford Ranger XLT 3.0 OBD Port
 

what codes did you find ?