Jeep problems

NiKeFiDO

Diamond Member
May 21, 2004
3,901
1
76
I have a '98 Jeep Cherokee, engine light just went on...

There supposedly is a way to check the diagnostic code by turning the battery power on and off 3 times (the code shows up where the mileage is)

Anyone know the proper way to do this or a reference place to tell me how?
 

nakedfrog

No Lifer
Apr 3, 2001
58,161
12,338
136
Didn't you JUST buy it?
Make sure you tightened the gas cap all the way. And it's probably not the battery power, but the key back and forth (but not all the way into the start position)
 

iamwiz82

Lifer
Jan 10, 2001
30,772
13
81
Key it on-off-on-off-on

note I said on, not start. The info will appear on the odo.
 

nakedfrog

No Lifer
Apr 3, 2001
58,161
12,338
136
Then you'll need to hit troublecodes.net for the analysis, but hopefully it's just the gas cap code. Minor emissions error or something like that.
 

markgm

Diamond Member
Aug 23, 2001
3,290
1
81
Originally posted by: iamwiz82
Key it on-off-on-off-on

note I said on, not start. The info will appear on the odo.

23% of all Jeep owners drive Jeeps.
 

farmercal

Golden Member
Mar 23, 2000
1,580
0
0
Originally posted by: funboy42
Buy OBD II code reader and hook it to car and read stored code FTW
I have one of these and all the code indicated that several cylinders were misfiring. Boy did that help me out:Disgust
 

Rogeee

Senior member
Feb 1, 2006
622
0
0
farmercal

Cylinder misfire is just the beginning of the diagnostic procedure,if you have multiple cylinder misfires then you will have to go into the PIDS section of your scanner,read the live streaming data and watch for incorrect MAF,MAP or fuel pressure fluctuations.
If you just have a cheapo read code only scanner,then you are SOL.

Once the codes are retrieved,you can look them up here.
 

NiKeFiDO

Diamond Member
May 21, 2004
3,901
1
76
i made sure to tighten gas cap. - the engine light wont turn off until a few cycles though, correct?
yes i just bought it, its under warranty from guy, but he is an hours drive away....


also ive been told that the key trick might not work because '96 + year jeeps switched to ODB ll and they might want you to come to the dealer for service...

any thoughts?
 

Rogeee

Senior member
Feb 1, 2006
622
0
0
"98 is OBII,this requires either a cheapo code reader or a decent scanner,both of which can be purchased at Auto Zone or your local auto parts dealer.
 

Rogeee

Senior member
Feb 1, 2006
622
0
0
I live in America,here we speak english,what the hell is 13h ? :):):D


Go buy the cheapo code reader,about $25
 

NiKeFiDO

Diamond Member
May 21, 2004
3,901
1
76
Originally posted by: crustyoldman
I live in America,here we speak english,what the hell is 13h ? :):):D


Go buy the cheapo code reader,about $25

its t3h, not 13h....as in "teh" which further translates in "the"

"teh cheap" is an expression i've heard commonly enough
 

iamwiz82

Lifer
Jan 10, 2001
30,772
13
81
Autozone will read codes for free

I thought 99 was the switch, but it is 98 that they went to readers only.
 

OdiN

Banned
Mar 1, 2000
16,431
3
0
I don't know if it's the case with Jeep's...but I know that some cars will have the check engine light come on every so many miles and when they change oil they are supposed to reset the ECU for that....may not be the case though, I dunno.
 

CyraKrin

Senior member
Dec 25, 2003
523
2
0
Originally posted by: markgm
Originally posted by: iamwiz82
Key it on-off-on-off-on

note I said on, not start. The info will appear on the odo.

23% of all Jeep owners drive Jeeps.

the other 77% know better than to set foot in one.
 

Scarpozzi

Lifer
Jun 13, 2000
26,389
1,778
126
It's definitely a bad engine. You need to call Chevy and see if you can get a replacement.
 

danzigrules

Golden Member
Apr 20, 2000
1,255
0
76
Originally posted by: iamwiz82
Key it on-off-on-off-on

note I said on, not start. The info will appear on the odo.



This will work, the check engine light will flash the code...

code 12 would be light on, of, pause light on, off on

there is a longer pause between each code.
 

bmacd

Lifer
Jan 15, 2001
10,869
1
0
just take it to autozone. They will tell you the diagnosis. Make sure you write down the code number and tell the jeep forum guys.

-=bmacd=-
 

NiKeFiDO

Diamond Member
May 21, 2004
3,901
1
76
Originally posted by: bmacd
just take it to autozone. They will tell you the diagnosis. Make sure you write down the code number and tell the jeep forum guys.

-=bmacd=-

im on this tomorrow already :p