Power Loss At Start-Up

Jordo! · 05-27-2014, 03:35 PM

Hmm. Only when A/C is engaged? Never when it is off?

Makes me think that either the compressor isn't quite turning smoothly on startup or that the belt is slipping.

Edit: Wait -- also make sure your intakes aren't rubbing against the AC lines. Small leaks and system pressure issues cause all sorts of funky problems with the A/C...

DavidB123 · 05-28-2014, 12:02 AM

Actually, I've determined that it does exhibit the problem both with the air on or off. It's just that I can duplicate it if the car is off for a 24 hour period and the air is on at start-up. I recently cleaned the K&N air filter on the cool air induction and all lines to the air conditioner are clear. The car has low mileage and goes to the dealer every 3 months for an oil change. The last time I had it serviced they kept it for the entire day to check this issue and found nothing. They have a guy that only works on Nismo's and GT-R's so I have to believe he is pretty experienced but the issue seems to be getting worse...

Jordo! · 05-28-2014, 06:37 PM

Quote:

Originally Posted by DavidB123

Actually, I've determined that it does exhibit the problem both with the air on or off. It's just that I can duplicate it if the car is off for a 24 hour period and the air is on at start-up. I recently cleaned the K&N air filter on the cool air induction and all lines to the air conditioner are clear. The car has low mileage and goes to the dealer every 3 months for an oil change. The last time I had it serviced they kept it for the entire day to check this issue and found nothing. They have a guy that only works on Nismo's and GT-R's so I have to believe he is pretty experienced but the issue seems to be getting worse...

How is battery voltage?

A battery that is crapping out or has corroded leads might perk up after its run a bit and had the alternator running to bump the voltage up.

DavidB123 · 06-01-2014, 01:16 PM

Quote:

Originally Posted by Jordo!

How is battery voltage?

A battery that is crapping out or has corroded leads might perk up after its run a bit and had the alternator running to bump the voltage up.

The battery, cables and voltage is all normal. I am bringing all the info from posted responses to the dealership for reference. Thanks for taking the time to respond!

05-27-2014, 03:35 PM	#1 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Hmm. Only when A/C is engaged? Never when it is off? Makes me think that either the compressor isn't quite turning smoothly on startup or that the belt is slipping. Edit: Wait -- also make sure your intakes aren't rubbing against the AC lines. Small leaks and system pressure issues cause all sorts of funky problems with the A/C... DavidB123 likes this. __________________ Enjoy it. Destroy it.

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05-28-2014, 12:02 AM	#2 (permalink)
DavidB123 Base Member Join Date: Apr 2012 Location: California Posts: 118 Drives: 2015 Nismo,Tec,Black Rep Power: 13	Actually, I've determined that it does exhibit the problem both with the air on or off. It's just that I can duplicate it if the car is off for a 24 hour period and the air is on at start-up. I recently cleaned the K&N air filter on the cool air induction and all lines to the air conditioner are clear. The car has low mileage and goes to the dealer every 3 months for an oil change. The last time I had it serviced they kept it for the entire day to check this issue and found nothing. They have a guy that only works on Nismo's and GT-R's so I have to believe he is pretty experienced but the issue seems to be getting worse...