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Will jerk and hesitate on hard acceleration and going up

incline from a stop JA: What...
Will jerk and hesitate on hard acceleration and going up incline from a stop
JA: What is the make/model/year of your car?
Customer: dodge pickup 2001 5.9
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: no
JA: Anything else you want the mechanic to know before I connect you?
Customer: it does the same on reverse when truck is on incline
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Answered in 1 minute by:
11/20/2017
Pete
Pete, Automotive Mechanic
Category: Transmissions
Satisfied Customers: 29,894
Experience: GM and Mercedes vehicle technician.17 years experience.
Verified

Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.

Has anything been checked or tested or replaced for this issue yet?

Let me know so we can continue,thanks Pete

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Customer reply replied 27 days ago
2 other sensors were replaced

Does it feel like an engine misfire with this issue here?

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Customer reply replied 27 days ago
No just hesitation

Has the check engine light come on with this issue at all or have fault codes been checked?

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Customer reply replied 27 days ago
All codes have been checked

Usually with a fault with a hesitation and jerk feel under acceleration or under load on an incline is related to an issue with either a lack of fuel due to a restricted fuel filter or weak fuel pump or an issue with an engine misfire.Spark will break down and cause this feel under load like this if there is a weak spark component like a spark plug wire/boot with high resistance or corrosion in it.Broken or corroded spark plugs or even an ignition coil are the most common for this issue here.Lack of fuel pressure or volume under load will also cause this feel here.These are all the common causes for this issue.

If you have not had spark tested/checked and spark components like a coil or wire and spark plugs checked this needs done.If these are o.k. or were checked I would have the fuel pressure tested with a fuel pressure test gauge.The vehicle will need driven with a fuel pressure test gauge attached while driving it needs to be monitored to see if the pressure drops off when under load when the issue occurs.This will help determine if this is a fuel issue.

These are the most common causes for this issue and need to be checked into to locate which is the cause then repaired from there.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

Pete
Pete, Automotive Mechanic
Category: Transmissions
Satisfied Customers: 29,894
Experience: GM and Mercedes vehicle technician.17 years experience.
Verified
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Pete
Pete
Pete, Automotive Mechanic
Category: Transmissions
Satisfied Customers: 29,894
29,894 Satisfied Customers
Experience: GM and Mercedes vehicle technician.17 years experience.

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