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Hesitation in acceleration on highway

Tiny
DOZER621
  • MEMBER
  • 2010 DODGE RAM
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 117,500 MILES
Engine hesitates when gas pedal is pressed before engine surges and drops in lower gear. Only happens in higher gears.
Sunday, November 6th, 2016 AT 8:11 AM

11 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with a gauge auto parts rent it. See link
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Sunday, November 6th, 2016 AT 12:11 PM
Tiny
RENEE L
  • ADMIN
  • 1,260 POSTS
Hi DOZER621,

If you would like to conduct the scan yourself here is a link to an article that features written step by step instructions and pictures explaining how to do the scan yourself, also I have included a link to our YouTube channel with a how to video on code scanning.

This is applicable even if your check engine light is not on.

Most scanners are inexpensive to purchase, you can purchase one online from sites like Amazon.com

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

https://youtu.be/YV3TRZwer8k

Once you have the codes please get back to us so that we can further assist you. We are always happy to help.

Thank you for visiting 2CarPros.com.

All the best,
,
Renee
Admin
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Sunday, November 6th, 2016 AT 12:23 PM
Tiny
JOHNNY G.JR
  • MECHANIC
  • 320 POSTS
Harbor freight has those code scanners starting at $39.00 dollars on sale this week.
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Sunday, November 6th, 2016 AT 4:51 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,538 POSTS
Please let us know what you find so it will help others.

Best, Ken
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Wednesday, November 9th, 2016 AT 9:28 AM
Tiny
DOZER621
  • MEMBER
  • 7 POSTS
I got a code reader, but the truck did not throw any codes. I am at a loss as to what the problem is.
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Monday, November 14th, 2016 AT 1:32 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,538 POSTS
Can you take a video of the problem and give us the link here. It tough to visualize what is going on.
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Monday, November 14th, 2016 AT 2:49 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Please check fuel pressure with a gauge to see if it is weak.
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Monday, November 14th, 2016 AT 3:04 PM
Tiny
DOZER621
  • MEMBER
  • 7 POSTS
What is the normal range for fuel pressure on a 5.7L Hemi?
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Monday, November 14th, 2016 AT 7:07 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
58 psi +-2 no lower key on or at idle
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Tuesday, November 15th, 2016 AT 5:53 AM
Tiny
DOZER621
  • MEMBER
  • 7 POSTS
Would low fuel pressure cause weird gear shifts?
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Tuesday, November 15th, 2016 AT 1:05 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Low fuel pressure can cause all sorts of things if engine doesn't run right neither will transmission
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Tuesday, November 15th, 2016 AT 1:20 PM

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