Re: Ticking sound while warming up

From: Michael Clark (mclark@wt.net)
Date: Mon Jul 07 1997 - 02:15:34 EDT


Sam Parthemer wrote:
>
> ----------
> > From: Michael Clark <mclark@wt.net>
> > To: dakota@ait.fredonia.edu
> > Subject: Ticking sound while warming up
> > Date: Wednesday, July 02, 1997 03:10 PM
> >
> > Hi all,
> > I have been noticing a strange ticking sound after I start my truck and
> > let it warm up. It is not rhythmic ie. lifters or injectors, it is
> > sporatic like: tick.....tick..tick.........tick... well you get the
> > idea. It seems to be in the exhaust somewhere [I'm not sure about that]
> > above the cat or in the cat itself. But I can also hear it under the
> > hood and under the truck. The sound is kinda like the sound you hear
> > after you shut a car off and the motor cools and gives off the little
> > clicks only these are just a bit louder than that. I've been noticing
> > this for a few months now. Truck drives fine, idles fine, I just don't
> > know what that ticking is and if I should worry about it. If anyone
> > would like I could record a short wav file and post it on my home
> > page....
> >
>
> Fuel pump by chance??? My '91 did that...then it eventually quit.
>
> Maybe a bad Timex watch on a bomb?? (JUST KIDDING)...
>
> Check your plug wires lately??? Maybe you have a spark that's
> jumping through the jacket to ground...
>
> A few things to check...
>
> Sam '95 SLT
Well I think maybe I've found what was causing the ticking sound. As I
idled the truck the other day I looked carefully under the hood and
noticed that when I would hear the clicking sound the automatic belt
tensioner would flex. I held my finger on it and could feel the
"clicks", felt like the spring inside the assembly was popping. Has
anyone else had any problems with the belt tensioner? Could the spring
need lubrication?

-- 
Michael Clark                    mike@snakebite.com
	  '93 Mark III 4X2 V-8 SWB
     auto, MP SBEC, K&N FIPK, Flowmaster
          http://userv.wt.net/~mclark/



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