New spark plugs now power surge

2002 RENAULT MEGANE
100,000 MILES • 1.4L • 4 CYL • FWD • MANUAL
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KOKEEFFE
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  • 4 POSTS
Got it services at dealer now it's jumping like a power surge in second gear and getting worse in all gears now
Feb 6, 2016 at 5:25 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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WRENCHTECH
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Why aren't you bringing it back to the dealer that did the work if they caused the issue?
Feb 6, 2016 at 5:28 AM
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KOKEEFFE
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The dealer cannot identify the problem
Feb 6, 2016 at 5:59 AM
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WRENCHTECH
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That's a ridiculous answer. It is their responsibility to find the problem and if they are a new car dealer, they are the ones most trained to do that. We don't have that car here in the US so we have nothing specific to that vehicle. Any competent technician should be able to narrow down the issue using diagnostic equipment.
Feb 6, 2016 at 6:06 AM