my check engine light came on?

Will it cause damage to my truck if I drive it and could it be just bad gas, also the last fill up I put a gas treatment in it would that have caused it?

This code is telling us that one of the sensors is reading out side the normally parameter range, now depending on which sensor is at fault will determine the severity of this problem, there is no way to know until the code is read, it is not a good idea to ignore these codes as the problem may escalate into a serious issue , something like a faulty knock sensor can lead to a hole burnt in a piston if left long enough, at least have the code identified so you know what the problem is.

Mark (mhpautos)

i have a 2000 ford ranger 4.0 scan says bank 2 sensor 1 oxygen sen bad i changed passenger side and 1 after catalytic converter still no luck new air filter new plugs n wires at 60000 miles had 2 replace heads and intake manifold gasket it has 84000 miles now.

Don't know what to do need some advise :-)

Is the check engine light on? If so scan it again and get back with the code/s

I have a 05 Ranger 3.0 V6...rough idle and loss of power and pulling the same exact code after me replacing plugs,wires,coils and fuel filter. Before spending money on converter I took to Ford Dealer and have it diagnosed and making sure it is the converters, Result ended in being 2 stuck valves on drivers side that was causing the problem. Not sure how your truck is running, but the codes I have in it are same as yours.

Engine problem
2000 Ford Ranger 6 cyl Four Wheel Drive Automatic 137k miles
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my check engine light came on and I went to Checkers. I ran the tester and it said I have insufficiant coolant temp. code 0125. I was wondering what I can do? Do I put more coolant in my radiator, I am not sure if one of my sensors is out

In my experience, most of the time this code is flashed, its because the thermostat is bad. try changing the t-stat and gasket, then top off the radiator.

I cant' use a code reader to fix my truck. They don't work. I bought one, tried two more to no avail. In the last tank of gas, truck idles rough, accellerates roughly in easy mode, but smooths up in hurried mode. Decelerates just fine. Put in Heet to dry out possible bad gas, no change. Just replaced fuel filter, no change. Now, I suspect short in ignition or battery wiring because of code reader failing to read... Ever hear of such a thing???

yes i have. usually i find a fuse blown for the data line at the dlc plug. your driveability problem sounds as simple as new spark plugs and wires. sounds like your dropping a cylinder. when you are easy on the throttle that is when the ignition system will tend to break down. check back with us and let us know

Is that the same plug the scanner goes into??? In-line fuse or something I can find in the fuse panel? Thanks, Sir Tim.

yes it is the same plug the scanner goes into. i cant at this time tell you what fuse it is because my computer crashed at work. the fuse will be in the fuse box, not a in line fuse.

A quick check of battery voltage revealed it was down to 12.2V, a full volt low, with a working regulator. Knowing it was 7 years old, I replaced it and all the troubles have vanished. Strange since it always started, lights were never dim, but I did put on two new battery cable terminals that could have been corroding on the inside and acting like big resistors, except under full acceleration. Strange, but cured. Don't know if it will accept a code reader or not yet, but back on the road and smooth running. Thanks for your help.

Hi my ford ranger 4cyl 2.5l just had a fuel pump replaced and ran great last night but today it has a rough idle when stopped and blinking cel that comes on and off. any idea on what to do now?

chekc the condiditon of the battery, it may be low. also check your alternator for putting power out. then have the engine scanned yo may hve an intermittent problem

My Ranger has the abs light on, the check engine light on and the o/d light flashes. I have replaced the speed sensor located on the rear differential and the lights are still on.

You need to have the abs computer scanned for codes a diyer scan tool won't read the abs.Unless you use a diyer scan tool that does abs and that is hit an miss if it will do yours.Also let me know the exact code numbers not code descriptions?

My engine check light is on, when I took it in for dionostic they told me it was due to a gas cap failure, is this posible?

Yes. If the seal fails on the gas cap it can cause an engine code to appear as an emissions issue.






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My ABS light came on and my speedometer stoped working whe the speed was under 40 Miles per hour, My friend told me its a easy problem to fix just replace ther rear speed sensor, It took me 15 miinutes to do the job all went great, I took the truck on a test drive as soon as i started it it was great to see the ABS light off and when i hit the road my speedometer was working like a champ, but the Check engine light came on as soon as i started the truck and wont go off. Please provide me with any comments thank you so much
Andy K

[quote:cb0ae232f9="andykusaf"]Electrical problem
2000 Ford Ranger 6 cyl Two Wheel Drive Manual 48,000 miles

My ABS light came on and my speedometer stoped working whe the speed was under 40 Miles per hour, My friend told me its a easy problem to fix just replace ther rear speed sensor, It took me 15 miinutes to do the job all went great, I took the truck on a test drive as soon as i started it it was great to see the ABS light off and when i hit the road my speedometer was working like a champ, but the Check engine light came on as soon as i started the truck and wont go off. Please provide me with any comments thank you so much
Andy K[/quote:cb0ae232f9]

Hi Andy,

You will need to get the codes pulled. Go by your local parts store and have them pull them for you. Write them down and post them.


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Ok my truck just failed California smog check because the check engine light does not function. I guess the light is burned out? Is this something that I can replace? I asked at autozone if this was a part that they could get and they told me it was a dealer specific light. Apparently there is some history of the truck that I am not aware of. I bought it used in Wyoming and then moved to California. It is the 3.0 liter V6, automatic and 4X4. Thanks for any help.

Hello Below is info you requested.

If engine light stays on once bulb is installed, get the codes pulled and post them and I will be more than glad to help you solve the issues.

2000 Ford Ranger Super, 105,000 miles, 6 cylinder. Just wondering what would cause the check engine light to come on?

The check engine light is governed my emission controls, if some thing causes your emission controls to recieve a signal out of range then it will light your check engine light (if it can not fix the problem itself), there are too many things to list, first I would get the computer scanned for codes and go from there. if you get codes post em, someone here should be able to help ya