1994 Ford F-150 sensors

MATT MARTINEZ

MEMBER
1994 FORD F-150
V8
2WD
AUTOMATIC
10,000 MILES

My truck (explorer)the engine light that signals something wrong with the engine. It sounds like one or two spark plugs is not working properly.A little black smoke comes out from the tailpipe at times. A little bad oder of gas fumes sometimes in the vehicle and outside too. When I acelllerate the gas to go, the vehicle like skips a second to take off. Sometimes the engine light will turn off then reappear. Car mechanic friend of mine said it might have a bad sensor. What is the sensors and how do I fix the problem.

Thursday, October 29th, 2009 AT 12:58 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

First, there are several sensors that can cause this problem. IF the check engine light is on or has been on, then there will be a code stored in the computer. Take the vehicle to a nationallly recognized parts store and have them scan the computer. Most will do it for free, and that way we will know where the problem is coming from.

As far as the black smoke, that indicated the air / fuel mixture is too rich (too much gas). The problem could be a bad O2 sensor, temp sensor, IAC, vacuum leak, plugged catylatic conver, or the vehicle may need a good tune up.

Have it scanned and let me know what you find.

Joe

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Friday, October 30th, 2009 AT 8:07 AM