Clicking noise from firewall - Nissan Armada Forum: Armada & Infiniti QX56 Forums
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post #1 of 32 Old 08-14-2011, 11:55 PM Thread Starter
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Clicking noise from firewall

We just returned a few hours ago from a camping trip with our trailer to Mammoth Lakes. After unloading the trailer at home, we went to put it back in storage. When I started the Armada, we heard a clicking noise coming from the firewall area, perhaps behind the dash board. The clicking went for about 10 seconds, then quit. I shut off the engine, restarted, and it repeated. I looked under the hood and couldn't see anything strange. But, every time we start the truck, the clicking noise occurs. It clicks exactly 22 times, starting about 2 seconds after the engine starts. All of the vent controls work, so I don't think it is one one of the vent actuators inside the dash. Any ideas out there?

Keith


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post #2 of 32 Old 08-15-2011, 11:37 PM Thread Starter
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Anybody??????


- 12 Armada Platinum, 4WD, Tuscan Sun (red)
- 06 Armada LE, 4WD, Red Brawn, QX56 Wheels (traded)
- 04 Armada LE, 4WD, Smoke (lemon lawed)
- 15 Ford Focus Electric, Magnetic with Gray Leather
- 08 BMW 550i, Manual Trans, Sport Package FOR SALE
- 00 Maxima SE, Manual Trans
- 65 Buick Skylark Gran Sport Convertible, 401 ci, 2nd owner, original condition, 68,000 miles
- Prowler Lynx 826M Travel Trailer, 26', 5000#'s

"How often we fail to realize our good fortune in living in a country where happiness is more than a lack of tragedy."
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post #3 of 32 Old 08-18-2011, 07:30 PM
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I answered this in the A/C click thread. Hope it helps.
Good luck.
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post #4 of 32 Old 08-23-2011, 07:07 PM Thread Starter
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First diagnosis from the dealer is that it is one of the vent actuators behind the gauge cluster, so 97trakin, you were right. I guess I figured that if it was making that noise, the vent actuators wouldn't actually move to redirect the air, and the noise would happen when I change the vent settings. I was wrong.

Truck is at the dealer now to fix it, praying it's covered under my extended warranty.

Keith


- 12 Armada Platinum, 4WD, Tuscan Sun (red)
- 06 Armada LE, 4WD, Red Brawn, QX56 Wheels (traded)
- 04 Armada LE, 4WD, Smoke (lemon lawed)
- 15 Ford Focus Electric, Magnetic with Gray Leather
- 08 BMW 550i, Manual Trans, Sport Package FOR SALE
- 00 Maxima SE, Manual Trans
- 65 Buick Skylark Gran Sport Convertible, 401 ci, 2nd owner, original condition, 68,000 miles
- Prowler Lynx 826M Travel Trailer, 26', 5000#'s

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post #5 of 32 Old 08-23-2011, 07:23 PM
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Yeah that's why I said it sounds like you have the Auto climate control. The Titan and Armada with auto climate control usually make the noise at shut down.
The vent door will eventually move and redirect the air flow even though the gears are slipping, that's what makes the clicking noise.

They make the actuators from two different materials. If the plastic for the main gear is black then you have the crappy ones, if the plastic is white then you have the good/updated ones. I replaced my bad one with another black one, didn't know better at the time, oh well.

Funny thing is I've never heard about a QX56 with this clicking problem to date .
They must all have the good ones lol.
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post #6 of 32 Old 08-24-2011, 09:33 AM Thread Starter
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Update from the dealer late yesterday evening, it is the "heater valve actuator" making the noise. Good news is that the actuator is located on the firewall, and doesn't require removal of the dashboard. Second bit of good news is that this is covered by my extended warranty.

Keith


- 12 Armada Platinum, 4WD, Tuscan Sun (red)
- 06 Armada LE, 4WD, Red Brawn, QX56 Wheels (traded)
- 04 Armada LE, 4WD, Smoke (lemon lawed)
- 15 Ford Focus Electric, Magnetic with Gray Leather
- 08 BMW 550i, Manual Trans, Sport Package FOR SALE
- 00 Maxima SE, Manual Trans
- 65 Buick Skylark Gran Sport Convertible, 401 ci, 2nd owner, original condition, 68,000 miles
- Prowler Lynx 826M Travel Trailer, 26', 5000#'s

"How often we fail to realize our good fortune in living in a country where happiness is more than a lack of tragedy."
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post #7 of 32 Old 08-24-2011, 04:04 PM
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That's excellent news. It's only held on there with one nut. It's sounds like you have the old style, Nissan only used the geared valve on the "04's from what I've seen. The "05's and up use the solenoid plunger type valve because the old ones had a few failures.
I modded mine to open wider than factory so when you turn my heat on max, it's ON MAX lol.

This is the older geared style that you have from your description.


This is the new solenoid plunger style.
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post #8 of 32 Old 08-24-2011, 06:39 PM Thread Starter
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Quote:
Originally Posted by 97trakin View Post
That's excellent news. It's only held on there with one nut. It's sounds like you have the old style, Nissan only used the geared valve on the "04's from what I've seen. The "05's and up use the solenoid plunger type valve because the old ones had a few failures.
I modded mine to open wider than factory so when you turn my heat on max, it's ON MAX lol.
My truck is a 2006.


- 12 Armada Platinum, 4WD, Tuscan Sun (red)
- 06 Armada LE, 4WD, Red Brawn, QX56 Wheels (traded)
- 04 Armada LE, 4WD, Smoke (lemon lawed)
- 15 Ford Focus Electric, Magnetic with Gray Leather
- 08 BMW 550i, Manual Trans, Sport Package FOR SALE
- 00 Maxima SE, Manual Trans
- 65 Buick Skylark Gran Sport Convertible, 401 ci, 2nd owner, original condition, 68,000 miles
- Prowler Lynx 826M Travel Trailer, 26', 5000#'s

"How often we fail to realize our good fortune in living in a country where happiness is more than a lack of tragedy."
--Paul Sweeney, author
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post #9 of 32 Old 08-24-2011, 07:42 PM
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Quote:
Originally Posted by Campfamily View Post
My truck is a 2006.
You beat me to it lol. I was on TT and some of them still have the geared ones also. What it seems like is the geared version is for the trucks with auto climate control.
Mine doesn't have auto climate control and it does have the plunger style solenoid valve.

It would be sweet if someone with a "05+ with auto climate control could snap a quick pic .
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post #10 of 32 Old 08-24-2011, 08:05 PM
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Ok here's a pic under the hood of 9balllrook's "06 SE. Not sure if he has auto-climate control or not. It clearly has a geared valve.


And here's a pic of under my hood, "05 SE non-climate control. Clearly has a solenoid plunger style valve, I took it apart lol.


The reason I'm trying to figure this out is just to let the guys with auto climate control have a heads up of something else to check that's easily replaceable if they ever get the clicking noise.

So lets hear it 9balllrooks. If you say 'YES' to having auto-climate control that will clear up my assumption.

Auto climate control = geared valve that may be the source of any potential fire wall clicking noise.
Non-auto climate control = solenoid valve that RARELY goes bad if ever. And fails in the open position anyway so you'd still have heat. Non-auto climate control FTW!
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