on my 1994 Ford Explorer, the check engine light stays on all the time

80

Asked by May 24, 2017 at 07:31 PM about the 1994 Ford Explorer 2 Dr XL SUV

Question type: Maintenance & Repair

I took my explorer to a mechanic last year because the check engine light came
on and stayed on, now its doing it again. I need to smog my truck but I can't do
it with the check engine light on. I've checked all the wiring and hose's but can't
find anything.

17 Answers

2,015

What did the mechanic do last year? What code do u have on your car?

1 of 1 people found this helpful.
2,015

If u don't have a scan tool, then please go to AutoZone and they will check error codes for free and give u a printout

1 of 1 people found this helpful.
80

775 thanks for the input. I bought a scan tool today, unfortunately when I went to the same mechanic yesterday and asked him about what he did last year of course this year he's in a different state of mind, he insists I let him do the scan at his shop:) for $85., I said that's ok I think I got this one covered. So I went to Auto-zone and bought my own OBD 1 tool. Yeah another tool to add to my arsenal.

1 of 1 people found this helpful.
2,015

yikes $85 is high for a shop.....there in Chicago they charge $75. I usually rent the Scan tool...yes, u buy it and then return it within so many days....at AutoZone. Its always available

1 of 1 people found this helpful.
2,015

Tell me what u find, I am interested to hear

1 of 1 people found this helpful.
80

Bought the code reader tested the truck got a 522 on the reader in the book it says 522 is the neutral safety switch. Because my truck is a standard trani auto zone says says it's the clutch safety switch. Bought the part installed it, ran the test again got the same code?? Help, please.

1 of 1 people found this helpful.
2,015

okay ...code 522 reads as this: 522 pops up if u don't have the clutch pedal down to the floor

1 of 1 people found this helpful.
2,015

run the test with the clutch down

1 of 1 people found this helpful.
80

Ok, replaced the part needed, (mass air flow) Ran the test again, got a pass code YEAY. got up this morning decided to do the full test "koeo, koer..." before I could start the truck, I got a 186code i.e. fuel injector switch fault code. Grr.. so now what ugh.

2 of 2 people found this helpful.
2,015

I found a good discussion on your problem. Look at the answer dated Sept 2002. It gives a step by step check list for you. Sorry I am on a trip to TX now https://www.ford-trucks.com/forums/25743-94-explorer-4-0l-rough-idle-error-codes-181-186-189-a.html

1 of 1 people found this helpful.
80

Cool site thanks for sending me in that direction, unfortunately I was unable to get direct answers. Maybe I am just not as mechanically inclined as I should be or wish I was, lol.

2 of 2 people found this helpful.
80

Thanks Dariusk, even though I wasn't able to get the info I thought I needed, I decided to go it alone. I guess I am mechanically inclined :) After I replaced the air flow sensor I noticed the plastic cover for the air filter was cracked, also the air flow tubing was pretty beat up, plus a few other smaller things needed taken care of so I got my hind busy and took care of business. Got it all finished up today, My truck is running like a top. Again thanks for all the assistance, you gave me the push I needed to do it.

2 of 2 people found this helpful.
2,015

Glad it is working so well! Congratulations!! I can just imagine the satisfaction you feel! What a great feeling!

1 of 1 people found this helpful.
80

Hey, Dariusk8. How's life treatin ya? I got another one hoping you can help me solve. 1999 Chevy Tahoe. If you got the time. ? If not a good time it's all good Brother.

2,015

Okay... what is the challenge? I am in Tulsa this week and am ready Best regards Darius

2,015

I see your writing in my phone but I do not see it on the car gurus web site... kinda strange

2,015

Okay....I found you on the Car Gurus web site.....share the details on your 99 Chevy Tahoe.....what happened?

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