CEL code 37

exjay82 · Aug 20, 2010

My Jeep (1997 4.0 automatic) has been sputtering lately, sometimes at idle and sometimes when i give it gas. Lately its gotten worse and now my check engine light has come on and is showing 37. I've looked around and this seems to indicate a problem with the torque converter. Can anyone give me some idea of what the actual problems may be and how to fix it? Thanks

joe_peters · Aug 20, 2010

How are you obtaining the 37 code?

birchlakeXJ · Aug 20, 2010

It is best to use a code reader or a scantool and get the full 5 field code P0XXX or P1XXX.

Post the exact number(s) here for comment.

exjay82 · Aug 21, 2010

i got it from doing the on off switch thing, now it's also throwing a 21.

JJacobs · Aug 21, 2010

birchlakeXJ said:
It is best to use a code reader or a scantool and get the full 5 field code P0XXX or P1XXX.

Post the exact number(s) here for comment.

joe_peters · Aug 21, 2010

Quote from 5-90's OBD-II tech page:

"The "key cycling" trick (cf. OBD-I) doesn't usually work for OBD-II vehicles, so you'll need a code scanner of some variety."

Some report that they CAN use the key trick on their 97s, others report that they CAN NOT. Best bet is to have the actual code(s) read and post up the complete code.

Just for grins, unplug the TCU and drive it shifting manually to see if the "sputtering" stops.

exjay82 · Aug 22, 2010

okay i'll try unplugging the tcu. thanks, sorry i've been too busy with work to get on here and check this thread often.

hubs97xj · Aug 22, 2010

Get the codes scanned at AutoZone or some such- the 2 codes you listed are trans and O2 sensor related, but could have any number of causes. The OBD codes are more detailed, and should help you narrow things down a bit.

CEL code 37

exjay82

NAXJA Forum User

joe_peters

NAXJA Forum User

birchlakeXJ

NAXJA Forum User

exjay82

NAXJA Forum User

JJacobs

NAXJA Forum User

joe_peters

NAXJA Forum User

exjay82

NAXJA Forum User

hubs97xj

NAXJA Forum User

Similar threads