Replacing crankshaft position sensor & thermostat... anything else?

[JimBlob]

While I (or someone with better tools) replaces the crankshaft sensor & thermostat are there any other 'bits' (sensors I'm guessing) worth replacing while I'm at it?
Going to do those two & maybe get rid of the occasional no start when hot

 

[Jamin]

Have you checked the battery health, it may seem strange but a new battery solved hot start issues on the brother in laws vw

 

[JimBlob]

Have you checked the battery health, it may seem strange but a new battery solved hot start issues on the brother in laws vw

Got a new battery, but also had/got battery drain - looking at that now - pulled the navtrac out last weekend
It was fully charged & good health yesterday when it wouldnt re-start - but I do agree, it seems if your battery isnt too good it can cause all sorts of issues

I'm also keen to replace parts as i go along - restoration/maintenance - to try to get on top of issues & rule them out

 

[DLax69]

Got a new battery, but also had/got battery drain - looking at that now - pulled the navtrac out last weekend
It was fully charged & good health yesterday when it wouldnt re-start - but I do agree, it seems if your battery isnt too good it can cause all sorts of issues

I'm also keen to replace parts as i go along - restoration/maintenance - to try to get on top of issues & rule them out

Any/all wear items...check belts, etc. while you're in there...

 

[mowlas]

Depending on mileage, maybe worth considering preventative alternator change? If lower mikes than not worth it. Mine packed up at around 85K…

Check the wiring for the CPS’s. I believe there are other sensors there too? It gets so hot in there, I would check all the wiring running around that area.

 

[JimBlob]

Dlax69... I have made a note!

Mowlas - Only 48k ish miles, felt alternator was ok - but tested to stop that nagging doubt. - battery raises to 14v at 2,000 revs
Do you think its best to replace the 2 other sensors? (noted as 'sensor for firing' on scuderiaparts)

 

[conaero]

If you are doing the crank shaft sensor, I would replace the oil pressure sender whilst you are in that area.

 

[Jamin]

I'm guessing you've done all the other routine service parts, spark plugs, air and fuel filters?
Is there a separate coolant temperature sensor?

 

[mowlas]

Dlax69... I have made a note!

Mowlas - Only 48k ish miles, felt alternator was ok - but tested to stop that nagging doubt. - battery raises to 14v at 2,000 revs
Do you think its best to replace the 2 other sensors? (noted as 'sensor for firing' on scuderiaparts)

I personally would change any other sensors that can only be reached with inlet manifold off.

 

[JimBlob]

Ok thanks everyone. Will buy the other 2 crank sensors and the oil pressure sender. The car had big service Jan 22 & small service jan 23 so the general stuff 'should' have been done.

Hope the mechanic can do it soon....or I've got a job on my hands

 

[Black Mazerati]

I personally would change any other sensors that can only be reached with inlet manifold off.

Are you sure the intake has to be removed to replace the crank sensor?

 

[JimBlob]

Are you sure the intake has to be removed to replace the crank sensor?

I think some have managed it - but going to replace other sensors & oil sender so will just be easier to remove. Just waiting a month for parts now!

 

[mowlas]

Are you sure the intake has to be removed to replace the crank sensor?

Not sure but it’s my understanding from the engines in the fifth gen QP/GTs. Not sure how different it is for the 3200s or 4200s…