SPONSORED LINKS

Stalls under load

Tiny
JW1983
  • MEMBER
  • 2003 FORD RANGER
  • 2.3L
  • 4 CYL
  • 2WD
  • MANUAL
  • 268,500 MILES
The engine tries to stall under a load, idling fine, noticed when motor is cold and hot.
Friday, October 26th, 2018 AT 2:31 PM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening.

Does the engine actually turn off or just will not pick up speed?

Possible issues could be low fuel pressure or a clogged catalytic converter.

Roy

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, October 26th, 2018 AT 3:12 PM
Tiny
JW1983
  • MEMBER
  • 3 POSTS
If I do not press the clutch to release the load it will choke down. I have had two other vehicles with similar symptoms and it was the torque converter switch. I was beginning to think it could be the catalytic converter or TCC. My diagnostic has a short or loose wire so cannot get an OBD reading.
Was this
answer
helpful?
Yes
No
Sunday, October 28th, 2018 AT 11:45 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, first, if you have a standard transmission which is what you indicate, there is no torque converter.

The catalytic converter should be checked for back pressure. You can rent a gauge at a parts store and install it where the O2 sensor is at the exhaust manifold. Anything more than 1 lb indicates a clogged catalytic converter.

Roy
Was this
answer
helpful?
Yes
No
Sunday, October 28th, 2018 AT 12:11 PM
Tiny
JW1983
  • MEMBER
  • 3 POSTS
I will give that a try.
Was this
answer
helpful?
Yes
No
Monday, October 29th, 2018 AT 2:07 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Keep us updated.

Always glad to help.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, October 29th, 2018 AT 2:10 AM

Please login or register to post a reply.

Related Engine Stall While Driving Content

How to Read Codes
VIDEO
How to Read Codes
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