How do I locate the Low Side Service Port Cap on my 2006 Nissan Frontier Nismo?


Asked by Oct 07, 2014 at 07:13 PM about the 2006 Nissan Frontier Nismo 4dr King Cab 4WD SB w/automatic

Question type: Maintenance & Repair

I have attached three photo's of my V6 4.0 2006 Nissan Nismo engine.
Which port is the low side service Port?

Thank You very much!!

4 Answers


The large line by the booster is low pressure, the one by the battery is high pressure.

1 people found this helpful.

Thank You Tennisshoes!! Just to confirm, I have uploaded a photo with an arrow to the large line in my engine photo. I very much appreciate your expertise. Mahalo!! -Chris

2 people found this helpful.

Yep that's the one. The way the systems are today you can't put a low pressure fitting on a high pressure line. Are you using a quick charge device or are you using a complete high low pressure recharger?

Best Answer Mark helpful

Wow, I am so grateful for your response, care and follow-up. Thank You!! I am unsure how to answer? What I can convey is that I purchased two parts - one being the R-134a Recharge hose with gauge handle (id quest) and two cans of refrigerant / one can is 14 oz (Napa) and the other is 12 oz (weitron). In advance, with Aloha, Thank You!! -Chris In advance,

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