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It sputters on acceleration. Replaced the MAF sensor. Still…

Customer Question
It sputters on acceleration...

It sputters on acceleration. Replaced the MAF sensor. Still doing it. Smells like rotten eggs at times.

Mechanic's Assistant: Does the engine stall right after starting? And what about hesitation or jerking during acceleration?

Idles fine. jerks during acceleration.

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

2003 Ls

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

Yes. Replaced MAF sensor cuz that was the problem last time it acted this way. Still have problem.

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

Smells like rotten eggs when I pull in driveway. Maybe EGR valve?

Submitted: 9 months ago.Category: Mercury
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Answered in 3 minutes by:
7/28/2017
Mercury Mechanic: david craig, ASE Certified Technician replied 9 months ago
david craig
david craig, ASE Certified Technician
Category: Mercury
Satisfied Customers: 5,379
Experience: owner/mechanic at 3D Automotive
Verified

Hi Im David, if it smells like rotten eggs and its hesitating and jerking, the catalytic converter is clogged.

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Mercury Mechanic: david craig, ASE Certified Technician replied 9 months ago

Have you replaced the catalytic converters yet?

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Chris (aka- Moose)
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Chris (aka- Moose), Mercury Technician
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