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When I step on the accelerator the engine loses power,fuel…

Customer Question
When I step on...

When I step on the accelerator the engine loses power,fuel pressure is good,idles fine,very smooth,I thought it mite be the reg. but not sure..all ignition parts are new

Mechanic's Assistant: Is the power loss consistent, or does it fluctuate?

Fluctuates

Mechanic's Assistant: What is the make/model/year of your car?

1998 2500 with 5.7 vortex

Mechanic's Assistant: Are you fixing your 2500 yourself? What have you tried so far?

Just fuel pressure and all the ignition,cap,rotor plugs and the wire are fairly new.....it backfires too if you try to crowd it.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

That's it

Submitted: 2 months ago.Category: GMC
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Customer reply replied 2 months ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call.
Customer reply replied 2 months ago
Let me know if you need more information, or send me the service offer(s) so we can proceed.
Answered in 10 hours by:
5/28/2018
GMC Mechanic: Greg, Technician replied 2 months ago
Greg
Greg, Technician
Category: GMC
Satisfied Customers: 7,492
Experience: 17 years Shop Owner /Technician. 27 years experience,
Verified

Hi, I'm Greg (Indy-Tech).
Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
Rgds Greg.

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GMC Mechanic: Greg, Technician replied 2 months ago

Have you checked for malfunction codes .

Greg

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