Vibration/shaking

**slim** · 12-08-2013, 01:34 PM

How would I know which CP to change?

**Jersey_Joe** · 12-08-2013, 07:11 PM

Is it triggering the check engine light?if so scan it. That will tell u what cyl is misfiring

**slim** · 12-08-2013, 07:17 PM

Oh no man. Light went off when I replaced the rubber elbow on the hose. No more light for a while now.

**Jersey_Joe** · 12-08-2013, 08:26 PM

Originally Posted by RhinoZ24

Word of advice, for future reference never believe everything they tell you at a shop. They run a business and the goal of a business is to make money, they'll try and sell you anything they can if they think you know nothing of vehicles and are gullible enough. O2 sensors will not cause your engine to run rough, all they do is measure the oxygen in the exhaust gas to determine if the engine is running efficiently. This info is used by your ECU to adjust the a/f ratio to even it out. If the sensors go bad or if the readings are past acceptable variation levels then yes it will throw a CEL and code. But the O2 sensors wouldn't cause the rough idle. Here's a list of possible causes if they haven't been checked or changed recently: Fuel filter Air filter Fuel injectors could be clogged Throttle body needs cleaned Spark plugs and COP's These are the most common causes of a rough idle, check them and clean/change what is necessary. For fuel injectors don't pay the shop to do it either, they'll bend you over the table with their prices, just go to an auto shop and pick up some fuel injector cleaner of which I recommend Lucas. Good luck and let us know what you find!

Very nice write kid

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Man I'll tell ya. The kid nailed it. Check all that. Clean all of that. When was the last time it's had plugs?

**slim** · 12-08-2013, 08:40 PM

I honestly don't know when the last time it had plugs. I bought it at 145k miles. Has 174k now and I've never done anything to it.

**Jersey_Joe** · 12-08-2013, 08:47 PM

Originally Posted by slim

I honestly don't know when the last time it had plugs. I bought it at 145k miles. Has 174k now and I've never done anything to it.

Would prob b a good idea lol. Start there motorcraft

**slim** · 12-08-2013, 09:31 PM

Will do

**RhinoZ24** · 12-08-2013, 09:39 PM

Originally Posted by Joe Grasso

Very nice write kid

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Man I'll tell ya. The kid nailed it. Check all that. Clean all of that. When was the last time it's had plugs?

Thank you sir, just trying to be as helpful as everyone else lol.

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Originally Posted by slim

I honestly don't know when the last time it had plugs. I bought it at 145k miles. Has 174k now and I've never done anything to it.

I agree with Joe, and with that many miles it would be a good idea to change the spark plugs anyways. Plus since you've put around 30k miles on it, it is also time for a new fuel filter (change every 30k miles). And I'd highly recommend cleaning your throttle body as its probably gummed up. The fuel filter and throttle body are 2 quick, easy, and cheap things you can do yourself without the shop. And for the fuel filter just like most replacement parts, go Motorcraft because these engines are very picky.

**slim** · 12-08-2013, 09:42 PM

10-4 already changed the filter.

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And I'll clean my TB soon as possibly.

**RhinoZ24** · 12-08-2013, 09:43 PM

Originally Posted by slim

10-4 already changed the filter.

Well that's one thing to check off. Next if the rough idle is still present, check the air filter and throttle body. Good luck again!

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