Question about 1996 Mercedes-Benz Mercedes Benz S Class Coupe

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Would a lower grade gas ruin the coil not the plug, and if so what should I do to make sure it is the coil so I dont spend the money for nothing. where would be the best place to get them new or used?

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Nop, a lower grade gasoline has nothing to do with the coil, it may cause knocking, plug could get ruined or mostly, fuel injectors are effected, but in any case, coil does not get effected, hope that u will not throw money for nothing

Posted on Sep 20, 2009


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What money?

Who is working on it,a repair shop?

Plugs don't fix a misfire
A bad coil would,if you got the correct one.

There are no computers used for any automotive
diagnostic work what so ever,unless you run scan
tool software on your notebook

Need to continue to look at all data related to
whatever problem you now have,since changing
plugs & coil

No check lights on dash, doesn't mean they aren't
stored in data

You could have worn out O2 Sensors,Bad TPS Sensor,
Vacuum Leaks & Evap Issues,& any number of things

Look at fuel trim,timing,smoke test intake & evap

Aug 23, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

Trying to start, but want catch

Check all your fuses. Make sure your car is getting gas. Check the fuel pump, make sure it kicks on. If you can get your car tested for codes, that would be your best bet. It would points you in the right dirrection. In all honesty, there are a lot of things that cause a engine not to start. I would start with fuses and relays. All it cost is your time. Then, make sure it's getting fuel. You can spray engine starter in the carb or you can use gas. If it starts and dies instantly, you have a fuel problem. If nothing, might have to check your ignition system. This is spark plugs or coils, spark wires, distributor, cap, rotor, coil packs. It could even be an internal ecm problem, your computer. Start with the easy and cheap fixes first. Don't want you to spend a large amount of money for nothing. If you have a question, just write me back.

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Car continues to misfire. Replaced spark plugs, wires, coils, module, fuel pressure regulator, and injectors. What else is left to do, without spending more money!!!!!!!

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ive run into this once before and it turned out to be the intake valve spring was broken not giving the correct seat pressure. not sure its your problem but it looks like you have covered all the other bases.

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