Patrol wont start, nissan say its the air con pump?

[Shaun 4x4]

I have a 2005 zd30 auto patrol.
The other day it wouldnt start. Not a battery problem as they are new.
Checked all the leads and they are all tight.

So sent it to nissan and they have told me its the air con pump needs replacing?
How is this stopping my car from starting?
If it is can i just disconnect it as i dont have a spare $1100 at the moment to replace the pump and belt that they say need replacing.

[Yendor]

If the A/C compressor has seized it can stop the engine from turning over.

What was happening when it wouldn't start?

[davo94]

If the A/C compressor has seized it can stop the engine from turning over.

What was happening when it wouldn't start?

It would need the clutch on the air con to be locked on for it to effect that.

The outer of the clutch is always spinning and when you hit the ac button its energises the electomagnetic field inside and engages the comoressor drive shaft.

[Shaun 4x4]

It sounded like it wanted to start but didnt have enough power to turn over.

I spoke to nissan again and they have said that the pully is seized along with the pump.

[Yendor]

It would need the clutch on the air con to be locked on for it to effect that.

The outer of the clutch is always spinning and when you hit the ac button its energises the electomagnetic field inside and engages the comoressor drive shaft.


There is a bearing in the pulley in the front of the compressor that is common for failing.

If this bearing has seized, having the A/C on or off will have no affect.

The ECU also switches off the A/C during cranking.

[Yendor]

It sounded like it wanted to start but didnt have enough power to turn over.

I spoke to nissan again and they have said that the pully is seized along with the pump.

The bearing in the pulley is replaceable.

If you can spin the inner part of the clutch plate by hand you might only need to replace the front bearing instead of the whole compressor.

[macca86]

You can do it yourself for 500 bucks bloke. Had this happen to me not long ago buy it second hand it's 4 bolts 2 pipes and a eletric plug. Get a genuine belt and ten get te system re gassed all under that price.

[Rustyboner81]

You can do it yourself for 500 bucks bloke. Had this happen to me not long ago buy it second hand it's 4 bolts 2 pipes and a eletric plug. Get a genuine belt and ten get te system re gassed all under that price.

You can do it yourself, but not without breaking a bunch of laws. Its illegal to work on aircons without a license and if you release that refridgerant into the atmosphere dont post it on here!

I suppose you cant take the aircon belt off or a smaller belt to bypass it on those engines?

[Shaun 4x4]

Cant take the belt of as it linked in with the main belt.
That was my first question to them.

Im just gonna get nissan to fix it and be done with it.
Hopefully this is it for awhile, otherwise it might be bye bye time for the patrol

[NP99]

Try an auto sparkie before using a dealer......

[nissannewby]

Cant take the belt of as it linked in with the main belt.
That was my first question to them.

Im just gonna get nissan to fix it and be done with it.
Hopefully this is it for awhile, otherwise it might be bye bye time for the patrol

You can to see if that's the issue but. Just remove it have a crank and if it fires all good just don't leave it running or drive it with it disconnected.

[NP99]

Did you get it fixed mate?

[Shaun 4x4]

Yer mate all good now.

Annoying thing is the belt had to be replaced aswell which I had only replaced a couple of weeks ago.