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94 Ford F150 "check engine" light stays on
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W.R.
User
May 8, 2011, 6:05 AM
Post #1 of 13
(6737 views)
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94 Ford F150 "check engine" light stays on
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The "check engine" light stays on. All the fluids are O.K. It has a 5.8 engine and is four wheel drive with an automatic transmission. Once in a while when driving it will go off for just a few seconds then come back on. Is this something that can be fixed at home (diy) or is it a dealer fix? Thank you for any help/advice given. It is a 1994 F150 extended cab with 241,000 miles. W.R.
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Hammer Time
Ultimate Carjunky
/ Moderator
May 8, 2011, 6:59 AM
Post #2 of 13
(6732 views)
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Re: 94 Ford F150 "check engine" light stays on
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The "check engine" light is an indicator for a system that monitors many electronic functions in the system, also called the "malfunction indicator lamp" (MIL). It can come on for any of hundreds of different causes from any of the systems that the computer monitors. Some are very important and can lead to further component or engine damage and some are emissions related not as serious but still a problem and need to be repaired.
Your first step is to have the computer scanned to retrieve the trouble codes that were set when the check engine light came on. Those codes will give you specific information about what the computer saw and will get you pointed in the right direction to find your problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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W.R.
User
May 9, 2011, 8:45 PM
Post #3 of 13
(6718 views)
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Re: 94 Ford F150 "check engine" light stays on
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Thank you very much for your reply to my question about the check engine light. I don't know for sure but I think I remember someone telling me that Auto zone or Advance auto will check that out for you. I am going to call them tomorrow and find out. Thanks again.W.R. 
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speed
User
May 9, 2011, 8:47 PM
Post #4 of 13
(6715 views)
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Re: 94 Ford F150 "check engine" light stays on
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yes autozne will read your codes for free if you take oyur car in just go to counter and ask for your check engine light codes to be read, they can also give you printouts of the codes so you dont forget, get the printouts or make sure your remember the codes numbers if you plan on asking about the codes as we will need them to help diagnose the problem right. have a good evening.
GM ASEP 26 SCC Milford ASE certified in Brakes and Electrical on Thursday April 5th 2012
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Mr.scotty
Enthusiast
May 9, 2011, 9:00 PM
Post #5 of 13
(6714 views)
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Re: 94 Ford F150 "check engine" light stays on
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I don't believe autozone does code reading on OBD-1 vehicles for free.
He might have to take it to a shop that Has a OBD-1 code reader.
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Your only as good as your tools!
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W.R.
User
May 9, 2011, 9:33 PM
Post #6 of 13
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Re: 94 Ford F150 "check engine" light stays on
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This is great. Getting all kinds of advice. I will get in touch with them tomorrow. Thank you much.W.R.
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W.R.
User
May 9, 2011, 9:36 PM
Post #7 of 13
(6709 views)
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Re: 94 Ford F150 "check engine" light stays on
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What is an OBD-1 vehicle? W.R.
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way2old
Veteran
/ Moderator
May 10, 2011, 5:07 AM
Post #8 of 13
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Re: 94 Ford F150 "check engine" light stays on
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OBD I is an earlier form of On Board Diagnostics. In approximately 1995, the manufacturers went to OBD II system. With the OBD I system, you can retrieve your own trouble codes with a little reading and patience. The link below describes how to do that. Good luck.
http://www.troublecodes.net/Ford/
Being way2old is why I need help from younger minds
(This post was edited by way2old on May 10, 2011, 5:08 AM)
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Mr.scotty
Enthusiast
May 10, 2011, 9:03 AM
Post #9 of 13
(6696 views)
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Re: 94 Ford F150 "check engine" light stays on
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That's a great site.
It should help him alot.
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Your only as good as your tools!
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W.R.
User
May 11, 2011, 5:13 AM
Post #10 of 13
(6681 views)
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Re: 94 Ford F150 "check engine" light stays on
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HAMMER TIME, SPEED, MR. SCOTTY, AND WAY2OLD..........Thank you so very much for all of you responding to my question about the "check engine light", it is way beyond COOL to be able to get this valuable advice from people like you. W.R.
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Mr.scotty
Enthusiast
May 11, 2011, 1:52 PM
Post #11 of 13
(6678 views)
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Re: 94 Ford F150 "check engine" light stays on
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Everones here to help each other and have a good time doing it!
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Your only as good as your tools!
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W.R.
User
May 12, 2011, 4:39 AM
Post #12 of 13
(6663 views)
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Re: 94 Ford F150 "check engine" light stays on
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Hi: I have not looked at wiring because I did not know what wires might and might not cause those kind of problems. As of last night my wife has some medical conditions that need to be adddressed and then my outside lawn/garden activities are upon me so it will be a few days before I can get back to checking out my truck's problems. Thank you for your response. W.R.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
May 12, 2011, 6:11 AM
Post #13 of 13
(6658 views)
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Re: 94 Ford F150 "check engine" light stays on
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W.R - as Mr. Scotty said, some or most Autozons and others are not doing code readings (free many times) for the older OBDI systems but as shown you can get codes out of them. Check places like Wallyworld as there's one (I own one) for Fords for about $25 bucks but you are really getting a book and the tool just blinks and you have count - book says how. No, those don't give printouts or hook to your computer. Do take codes as the area to go looking for a problem not gospel that it knows exactly the problem - you might find a bad wire or connection to a good item?
T
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