My 1995 Ford F-150 pickup with a 5.0 l, 2 wheel drive starts easy, but runs rough, chokes down and blows black smoke from the exhaust. When I press the acc. pedal it will not accelerate, it chokes down even more and the smell of the exhaust is like a very rich mixture, if it was not fuel injected I would swear the choke was stuck. Any help appreciated.
Dunno about your 95 f150 but mine has now maf sensor it has the speed density set up so you would have to check the air charge sensor and the map (manifold absolute pressure sensor make sure one or both is not bad these to together work like a maf sensor. and of course cause the same symptoms. hope it helps
sorry miss typed most 1995 f150 and previous 5.0 fuel injection systems do not have a maf (Mass air flow sensor) but use the throttle position sensor, air charge senor, and the map (maniflold absolute pressure) sensor to do the fuel mixture and timming adjustment. That could cause these symptoms so check these items.
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I would suspect your Mass Air Flow sensoris really dirty and /or your Throttle Positioning Sensor is bad
If you attempt to clean the MAF be VERY gentle and careful VERY fragile. Do not replace it with out it showing a code that it is bad - very spendy
Hope this helps if it does please leave a testimonial
Thanks
Scott
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