SPONSORED LINKS

Engine will not stay running and keeps throwing codes PO174 and PO172

Tiny
SKYLERTYLER
  • MEMBER
  • 2008 JEEP GRAND CHEROKEE
  • 3.7L
  • V6
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
Vehicle won't run, idle keeps shutting off and throwing code Po174 and Po172 codes. Can someone steer me in the right direction to get this truck running again.
Monday, March 14th, 2022 AT 11:30 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

These codes are both fuel related, both rich and lean code.
It could be caused by faulty oxygen sensor, bad MAP sensor, issue with fuel pressure regulator, EVAP purge solenoid operation, engine coolant temperature issue. It can also be due to an issue with the PCM.

I have attached the trouble shooting steps for these codes below. Follow the guide and it can help you determine what is the issue.

Please let me know if you have any questions.
Thank you.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 15th, 2022 AT 8:57 AM

Please login or register to post a reply.

Related Engine Stall While Driving Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Engine Stalls While Driving
GUIDE
Engine Stalls While Driving
An engine that stalls while driving and then starts back up again, either immediately or after a short time is different from an engine that just wont start or if the...
VIEW MORE

Sponsored links