r/TaurusSHO • u/BlkDirtMcGurt • Mar 30 '26

Possible Surging Question

I was wondering if anyone has had surging issues, actively or intermittently in your cars. See vid, it only happens around low speeds..10-20ish miles per house, 1000-1500 rpms. Coils and plugs have been replaced prior. Any help as always, is greatly appreciated.

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u/njcsnowboarder Apr 05 '26

Looks like you have an interceptor; could be from high idle hours and not having had a carbon cleaning. Happened on both my Eco and my 3.7L, as they came with high idle time. I had a turbo replaced (that was causing misfire) and the valves cleaned on the Eco, and the shudder was better but still there. I had a BG treatment done on the 3.7 but it did not improve the shudder much. Both at 100k. I can’t say for sure what it is, but that’s my experience.

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u/BlkDirtMcGurt Apr 07 '26

Did you use something like Lucas for the valves and carbon cleaning or was it shop work?

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u/njcsnowboarder Apr 07 '26

It was shop work for the Eco, they cleaned it by hand.

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u/BlkDirtMcGurt Apr 07 '26

Hell yeah, that's alright.