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        General >> Problems >> Severe rattling and vibrations from engine
        
(Message started by: fersol91 on Nov 26^th, 2012, 12:05am)

Title: Severe rattling and vibrations from engine
Post by fersol91 on Nov 26^th, 2012, 12:05am

I'd been driving for about 1.5 hour in my 96-model Scorpio 2.3 l DOHC when I suddenly heard a rattle noise from the engine. When I stopped and opened the bonnet, I could clearly see the engine vibrating and the rattle was loud and steady. I didn't risk to drive any further.

At first, I was thinking that one of the cylinders could be misfiring, but the noise sounded quite metallic. Could the adjustment of a valve have gone bad, so that it hits the top of the piston? Anyone else had this experience with a 2.3 l DOHC?

Title: Re: Severe rattling and vibrations from engine
Post by Matt on Nov 26^th, 2012, 12:09am

I had a 2.3 with a failed EGR valve the other day, engine was rough and shaking but didnt sound metallic, it was also low on power and didnt want to idle

Id drain off the engine oil and sieve it through a fine cloth, looking for any metallic particles or plastic (chain tensioner)

Title: Re: Severe rattling and vibrations from engine
Post by fieldashley on Nov 26^th, 2012, 5:33pm

Sounds like a misfire, could be plugs or ht leads or the dearest fix, coil packs....

Title: Re: Severe rattling and vibrations from engine
Post by Jonnycab on Dec 2^nd, 2012, 1:21am

Was there a sudden loss of power ?....if so, could be the catalytic converter is kaput....they do tend to rattle when they go :)

Title: Re: Severe rattling and vibrations from engine
Post by iainc on Dec 4^th, 2012, 6:50pm

Sounds similar to what I had in an Astra many years ago on Easter Bank Holiday Monday on the M6 (joy): it was a dropped valve spring, I think. Certainly valve related. I think you were quite sensible not to drive further in case of damaging the innards. I doubt that a misfire would produce a metallic sound, but the engine vibration does suggest to me an imbalance caused by a piston-area problem.