[V8] hot start problem which sensor

roncav3 at comcast.net roncav3 at comcast.net
Tue Jun 8 22:07:26 EDT 2004

I've done this job as well.  I didn't find taking the sensors out to be too bad.  But sort of struggled with getting my hands into position to release the clips on the plug ends.

If you run a query for "engine speed sensor" on the Audiworld forum, and choose post #18, there's a really good pic of where they're located.  You'll see that they're so close to the exhaust manifold that there's no wonder why they become heat soaked and fail. HTH


> I think that's the ignition sensor, Ron.  But those sensors are such a pain
> to replace and they both tend to have the same lifespan, according to
> numerous postings I've read, so I just switched out both of them.  I found
> when the hot start problem began, I could shorten the "cooldown" time to
> get a restart by opening the hood.   The other sensor reportedly isn't
> available anymore, but they're identical except for the color of the
> plastic covers.  I think the ignition sensor is the gray one and the engine
> sensor is the black one.  I taped the one I connected to the engine sensor
> wiring harness with some black electrical tape.
> At 10:10 AM 6/8/2004 -0700, Ron Wainwright wrote:
> >  Listers,
> >
> >  This morning I had the classic hot start symptom,
> > I'm a roofer so i meet the guy's at a local coffee
> >house & went to leave but the car wouldn't start, so I
> >did a spark test & got no spark from either pass side
> >or driver side spark plugs. So after about an hour the
> >car finally started,
> > so from other peoples BTDT I come to the conclusion
> >it's the sensor. But since I'm new to V8's I'm not
> >sure which one. 
> > I just want to know if it's the ignition reference
> >sensor (G4),
> > or the engine speed sender (G28). I tried to search
> >the archives but they are a mess.
> > I appreciate the lists wisdom.
> >Thanks
> >Ron
> > 
> > 
> >
> >
> >	
> >		
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