answersLogoWhite

0


Best Answer

We have a book that is literally about 3 inches thick that contains flow charts to diagnose why a check engine light is on. It will be impossible to enumorate all the possible reasons. The PCM has seen an area where it is seeing something other than what it has been programmed to expect from that area. It could be as simple as a loose gas cap, it could be as complex as a wiring problem. There are lots of senerios that would allow the vehicle to still run ok, such as a heater burned out in an O2 sensor, a problem in the evaporative emmissions system, vehicle running slightly lean or rich, intake air temp circuit problem, etc. You will need to get the system scanned to find out what area the problem is in, to narrow it down.

User Avatar

Wiki User

โˆ™ 2006-04-17 12:59:05
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar

Add your answer:

Earn +20 pts
Q: If your 2001 ford ranger is running good why is the 'check engine' light on?
Write your answer...
Submit
Related questions

Your 03 Nissan exterra check engine light is on and running rough?

the check engine light is blinking and my 03 Nissan exterra is running rough


Where is the location of the check engine light on a 1999 Ford Ranger?

The check engine light on a 1999 Ford Ranger is between the full mark of the gas gauge and the left turn signal arrow


Check Engine Light comes on on Ford Ranger XLT 2.3 L?

When the check engine light comes on , a malfunction has been detected with the emission control system , if the light stays on steady have the Ranger scanned for any trouble codes to diagnose and then repair the problem ( also if the light flashes on and off continuously with the engine running that indicates a spark plug misfire , scan , diagnose and repair )


Can you replace a catalytic converter with a straight pipe on a 1998 dodge durango 5.9?

No. It is illegal, will cause a check engine light and running problems.No. It is illegal, will cause a check engine light and running problems.


How do you turn off the check engine light on a 2000 Ford Ranger?

A check engine light means you have a possible problem with the emission system , you should get the Ranger scanned for trouble codes to diagnose and repair the problem . Once the problem has been repaired the check engine light can be reset.


How do you turn off check engine light on a 2002 Ford Ranger?

Take your 2002 Ford Ranger to the garage to get the engine checked.


Check engine light flashing and running rough on a Ford Ranger 2002?

If the check engine light is flashing that means an engine cylinder misfire has been detected . You can drive it in for repair , just avoid any rapid acceleration or deceleration because you can damage the catalytic converter


What is difference between flashing and steady check engine light in 1999 ford ranger?

A flashing check engine light means an engine cylinder misfire has been detected


Is running out of gas cause for the check engine light to come on?

Running out of gas my certainly be a cause for the check engine light to come on. It could also be an assortment of other issues.


1994 Ford Ranger check engine off light will not start?

huh?


Why does a 1994 ford ranger check engine light conme on when engine warms up?

If the check engine light stays on , a malfunction with the emission control system has been detected , have your Ranger scanned for any trouble codes to diagnose and then repair the malfunction


How do you check a 1997 ford ranger check engine light codes?

There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.


How do you reset the check engine light on a 1998 ford ranger and theres nothing wrong with the engine?

If the check engine light is on, there's something wrong with the engine. Or, the computer is bad. One or the other. They don't set a light for no reason.


What would cause a check engine light on a 1997 Ford Ranger with only 36000 miles?

A check engine light means that a malfunction has been detected with the emission control system - if the check engine light does not go out ( sometimes the problem corrects itself and the light goes out ) have the Ranger scanned for trouble codes in order to diagnose and then repair the malfunction


Ford Ranger check engine?

The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions. If the check engine light is flashing a misfire has been detected


How do you check a check engine light on a 2001 ford ranger pu to see if it is burn out?

When you turn the ignition key to the run position just before starting the vehicle the check engine light will light for a few seconds to check the bulb


Why is the engine management light flashing?

If the check engine light is flashing when the engine is running , that indicates that an ignition misfire has been detected


Ford Ranger Speedometer not working and ABS warning light and Check Engine light on?

There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired


What does the check gauge light mean on a 2002 Ford Ranger?

On a 2002 Ford Ranger : The check " gage " light comes on if : The engine coolant temperature is TOO HIGH The engine oil pressure is TOO LOW or The fuel gauge is at or near empty


1994 ford ranger check engine light only comes on when pulling a trailer load?

check your gauges first is it running hot ? is the oil pressure ok ? if the engine seems to be running fine then it could be a bad ground theres alot of things that could cause this but those are the easyest to determine


What is the most common problem when the check engine light comes on in a Ford Ranger?

There could be several reasons for the check engine light to come on. You can take it to Advance Auto Parts or Autozone and if the check engine light is on they will hook it to their computer and tell you exactly what the problem is for free.


Your 1992 integra check engine light will not come on?

why would u want the check engine light to come on. when its off it means ur engine is running fine. or the blub is pop


Why would a engine light flash on a 1996 ford f150 truck while running?

If the check engine light is flashing with the engine running , that means a spark plug misfire has been detected


Why does a 91 chevy camaro check engine light comes on?

The check engine light comes on at start up for a bulb check. If it stays on with the engine running the computer has detected a malfunction. You need to have it checked for codes.


How do you turn off the Check Engine light on a 1997 Ford Ranger XLT?

There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.