96 jetta no start

I won't be able to work on it for a couple of days but when I do I'll
let the group know what I find.
Thanks for the imput Dave.
I'm still curious why I don't have spark.
Maybe the crankshaft sensor shut it down if the timing jumped?
Rich

On Sat, 28 Apr 2007 13:15:11 GMT, "dave AKA vwdoc1"
<vwdoc1 RemoveThis @hotmail.com> wrote:

>I vote timing belt!
>If some teeth broke then the timing would change which could throw the
>camshaft sensor code and your engine will possibly die and not restart.
>The camshaft sensor on your 2.0 engine is the hall sensor inside of the
>distributor and should not stop your engine from running. If the
>distributor shifts a little out of time, due to a tooth change, then the ECM
>will notice that and throw a code.
>That makes sense to me!
>
>You need to check the timing belt alignment first.
 >> Stay informed about: 96 jetta no start 

The spark is basically "triggered" by the crank position sensor (engine
speed sensor) and if it goes bad you probably will get no spark.
If the ign. coil goes bad you probably will get no spark.
If the ign switch goes bad you could possibly get no spark.
I have not checked the spark after a 2.0l engine breaks its belt.
If the timing belt breaks then the engine usually has a different sound
while you crank it over.

Where/how did you test the spark?
--
later,
dave
(One out of many daves)

"rg" <rgrunza.RemoveThis@adelphia.net> wrote in message
news:23l9335t2l9kvpul50sr5caqn93a9almcp@4ax.com...
>I won't be able to work on it for a couple of days but when I do I'll
> let the group know what I find.
> Thanks for the imput Dave.
> I'm still curious why I don't have spark.
> Maybe the crankshaft sensor shut it down if the timing jumped?
> Rich
>
> On Sat, 28 Apr 2007 13:15:11 GMT, "dave AKA vwdoc1"
> <vwdoc1.RemoveThis@hotmail.com> wrote:
>
>>I vote timing belt!
>>If some teeth broke then the timing would change which could throw the
>>camshaft sensor code and your engine will possibly die and not restart.
>>The camshaft sensor on your 2.0 engine is the hall sensor inside of the
>>distributor and should not stop your engine from running. If the
>>distributor shifts a little out of time, due to a tooth change, then the
>>ECM
>>will notice that and throw a code.
>>That makes sense to me!
>>
>>You need to check the timing belt alignment first.
>
 >> Stay informed about: 96 jetta no start 

The problem was the timing belt. I've been working on cars for about
40 years so I'm ashamed to admit that when I first had the dist cap
off I didn't turn the engine to see if the rotor was moving. The belt
wasn't broken but all of the ribs around the crank pully were gone so
the cam or dist gears wern't moving hence no spark . Put the new belt
and tensioner on and it fired right up. Running smooth so hopefully no
bent valves. Once again thanks for the advice.

On Tue, 01 May 2007 11:48:01 GMT, "dave AKA vwdoc1"
<vwdoc1 RemoveThis @hotmail.com> wrote:

>The spark is basically "triggered" by the crank position sensor (engine
>speed sensor) and if it goes bad you probably will get no spark.
>If the ign. coil goes bad you probably will get no spark.
>If the ign switch goes bad you could possibly get no spark.
>I have not checked the spark after a 2.0l engine breaks its belt.
>If the timing belt breaks then the engine usually has a different sound
>while you crank it over.
>
>Where/how did you test the spark?
 >> Stay informed about: 96 jetta no start 

congrats!
be proud that YOU found that problem!

I had a timing belt on an Audi 5000 that had not broken and all of the teeth
were present. The engine would start sometimes and then would sound like
the timing belt was gone, and then start again. The teeth were compressing
like they were hollow on the inside. A new belt and all was right, but I
learned a lesson there about the timing belts..................best to
change them when in doubt!
Also had another vehicle 1992 Jetta 8v reman engine that would start
sometimes and then sound like the timing belt went. Let it sit for 15
minutes and it would start and die again. It was the oil pump with so much
pressure that it caused the lifters to pump up and keep the valves open.
THAT one was a challenge that another shop couldn't handle!

I am constantly learning! <g>
--
later,
dave
(One out of many daves)

"rg" <rgrunza DeleteThis @adelphia.net> wrote in message
news:7usi33tsuvdhj9m6ub69ecuf30kio13uul@4ax.com...
> The problem was the timing belt. I've been working on cars for about
> 40 years so I'm ashamed to admit that when I first had the dist cap
> off I didn't turn the engine to see if the rotor was moving. The belt
> wasn't broken but all of the ribs around the crank pully were gone so
> the cam or dist gears wern't moving hence no spark . Put the new belt
> and tensioner on and it fired right up. Running smooth so hopefully no
> bent valves. Once again thanks for the advice.
>
> On Tue, 01 May 2007 11:48:01 GMT, "dave AKA vwdoc1"
> <vwdoc1 DeleteThis @hotmail.com> wrote:
>
>>The spark is basically "triggered" by the crank position sensor (engine
>>speed sensor) and if it goes bad you probably will get no spark.
>>If the ign. coil goes bad you probably will get no spark.
>>If the ign switch goes bad you could possibly get no spark.
>>I have not checked the spark after a 2.0l engine breaks its belt.
>>If the timing belt breaks then the engine usually has a different sound
>>while you crank it over.
>>
>>Where/how did you test the spark?
>
 >> Stay informed about: 96 jetta no start