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justin meade (Xmustang420)
New Member
Username: Xmustang420

Post Number: 11
Registered: 12-2003
Posted on Monday, February 16, 2004 - 06:53 pm:   Edit Post Delete Post Print Post

I just bought a 96 discovery about 2 months ago and just yesterday the check engine light came up. I read in the manual that to get it to a shop as quickly as possible if it is a red but what about yellow. What could the problem be? Should i take it to Land Rover?
 

Robin Cooper (Cooper1)
Member
Username: Cooper1

Post Number: 41
Registered: 12-2003
Posted on Monday, February 16, 2004 - 09:12 pm:   Edit Post Delete Post Print Post

O Lord...whatever it is i can garunteeeeeeee it's not covered under warranty. Hm, any unusual noises or lack of something? Take it to Land Rover to find out the prob. and then take it somewhere else to be fixed.
 

REBECCA GODWIN (Rlgodwin)
New Member
Username: Rlgodwin

Post Number: 2
Registered: 02-2004
Posted on Monday, February 16, 2004 - 09:15 pm:   Edit Post Delete Post Print Post

Same thing with my 99 Discovery I but it was just the oxygen sensor. YOu can purchase it off Ebay or somewhere else..........DO NOT buy it at the dealership! They want twice the price for what you can find it for on the web somewhere. :-) Hope this helps! Also, you can take it to Firestone or your local mechanic and just let them run a diagnostic on the 4 oxygen sensors and they can tell youwhich one is bad, rather than take it to the dealership and spend a bunch! That's what I did.
 

Corey (Discobro)
Senior Member
Username: Discobro

Post Number: 351
Registered: 12-2002
Posted on Monday, February 16, 2004 - 09:48 pm:   Edit Post Delete Post Print Post

This is nothing to be worried or even alarmed about. This is so common in Discovery's it's not even funny. My check engine light was on for a full year. If you are a DIY kind of person, you can find out what the problem is by yourself or just take it to the dealership and bend over...

Really though, you can go to any Autozone autoparts store and have the check engine codes read for free and this will give you a general idea of what the problem will be. It is not necessarily the O2 sensors. It could be one of several hundred different things. Most likely it is something not too pressing right now. The check engine light is not a dummy light. It is a comprehensive computer diagnostic system that will tell you way in advance before something actually breaks or dies or fails (usually :-) ).

Just don't worry too much about it. It is your maintenance friend :-) .
 

Kristopher March (Apexdisco)
Senior Member
Username: Apexdisco

Post Number: 289
Registered: 02-2002
Posted on Monday, February 16, 2004 - 10:51 pm:   Edit Post Delete Post Print Post

Well I was going to post a separate message about the Check Light that illuminated for the first time tonight in my 99 Disco SD.

We just finished up a run at Kephart in GWNF. As I was driving down Rt. 33 towards Harrisonburg my check engine light came on. I pulled over to check for things like leaking transmission, diffs, etc. Found nothing.

I checked the fluid levels. Nothing there to be concerned about.

It was getting dark so I decided to press on and just drive slower than I normally would.

After reading this post, I'd like to know if somehow crashing through the icy, muddy puddles would have affected my oxygen sensors. Is there any way they could have been pulled out? Also, on my 100+ mile trip back to Richmond, it seems that I still got average gas mileage.

I also noticed a metalic vibrating sound from underneath my truck. Without actually taking a look, I am assuming that one of u-bolts that hold my exhaust pipe came loose.

We were also driving thru some streams. Could the MAF have gotten wet, thus producing a check engine light?

When I hit up Autozone tomorrow, are they going to be able to interpret the codes that are read?
 

Corey (Discobro)
Senior Member
Username: Discobro

Post Number: 352
Registered: 12-2002
Posted on Monday, February 16, 2004 - 11:26 pm:   Edit Post Delete Post Print Post

the codes read at Autozone are specific to the make and model that you drive. They check the codes and then look up your car in the computer and it tells them specifically what it means per your car.

As far as what is wrong, it is hard to say. It may have had something to do with your trip, it may not. It could even be as simple as the emmissions reminder reiggering the light. How many miles on your 99 Kristopher?
 

Corey (Discobro)
Senior Member
Username: Discobro

Post Number: 353
Registered: 12-2002
Posted on Monday, February 16, 2004 - 11:27 pm:   Edit Post Delete Post Print Post

the codes read at Autozone are specific to the make and model that you drive. They check the codes and then look up your car in the computer and it tells them specifically what it means per your car.

As far as what is wrong, it is hard to say. It may have had something to do with your trip, it may not. It could even be as simple as the emmissions reminder triggering the light. How many miles on your 99 Kristopher?
 

Corey (Discobro)
Senior Member
Username: Discobro

Post Number: 354
Registered: 12-2002
Posted on Monday, February 16, 2004 - 11:31 pm:   Edit Post Delete Post Print Post

whoa double post - that's wierd...

BTW - if you are not satisfied with Autozones diagnostic (sometimes these auto parts shops don't always have the correct info on Land Rovers) check out this site to check the definitions of the codes for yourself:

http://www.iequus.com/obd_def.asp
 

Alan Yim (Alan)
Senior Member
Username: Alan

Post Number: 1078
Registered: 09-2002
Posted on Monday, February 16, 2004 - 11:40 pm:   Edit Post Delete Post Print Post

It also doesn't necessarily mean something is broken either. It could just be something that needs to be recalibrated. This happened with me as the previous owner had driven the vehicle in a way different enough than me that the CE light came on that required me to bring the truck in and have a setting changed to my driving style. Either way, a yellow non-flashing CE light isn't something to frett over. Just take it in to some place that can read the code so you know what it might be and just be aware of it.
 

Kristopher March (Apexdisco)
Senior Member
Username: Apexdisco

Post Number: 294
Registered: 02-2002
Posted on Tuesday, February 17, 2004 - 12:13 am:   Edit Post Delete Post Print Post

I was under the impression that the service engine light came on when the emissions reminder wakes up. Not the check engine light.

Thanks for the link. I'll see what happens tomorrow.
 

Jaime Crusellas (Jaime)
Senior Member
Username: Jaime

Post Number: 252
Registered: 05-2003
Posted on Tuesday, February 17, 2004 - 12:13 am:   Edit Post Delete Post Print Post

Kristopher,

Its possible that something got wet, not necessarily the MAF. I do a lot of water crossings, and its not unusual for my disco to exhibit some quirky behavior afterwards, especially if a lot of water was involved. I've had my brake light on for a couple of days, window would not work for a couple of hours, headlight out for a day, etc. Most of these I attributed to wet connections.

If the ECU senses a problem, depending on its programming it may or may not set the check engine light. And it may turn off the light if the problem is not detected after a certain number of drive cycles. It's really a pretty complicated system that relies a lot of sensors working parfectly to provide it with the data it requires for its operation. So if one of those sensors is not providing accurate signals (maybe 'cause it was soaked in water and ice :-) the ECU may be throwing a misleading code.

The first step is to have the code read, and then take it from there.

 

Kristopher March (Apexdisco)
Senior Member
Username: Apexdisco

Post Number: 295
Registered: 02-2002
Posted on Tuesday, February 17, 2004 - 01:13 pm:   Edit Post Delete Post Print Post

Here is the code that was read at Autozone:

P 0116 Engine coolant temperature
CKT Range/Perf.

I cross referenced it with the website Corey provided and it's consistent.

P0116 Generic Engine Coolant Temperature Circuit Range/Performance

Does anyone know what this means exactly. Thanks, Kris
 

Kristopher March (Apexdisco)
Senior Member
Username: Apexdisco

Post Number: 298
Registered: 02-2002
Posted on Tuesday, February 17, 2004 - 07:18 pm:   Edit Post Delete Post Print Post

bump.

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