WHAT DO COYOTE AUTOMATIC TIRE DEFLATORS DO?

They automatically air down all four tires at one time to the destination pressure that you have chosen (adjusted) to air down to.

DID COYOTE IMPORT THE AUSTRALIAN-MADE STAUNS?

Yes, Coyote imported Staun deflators starting way back in about 2002. We more than doubled the original importer’s sale in less than a year. As time went on, we kept coming up with performance improvements but were told, “Naw mate, you just take care of the sales and we’ll handle the engineering here down under. By 2010 we were so tired of hearing this that we formed Coyote Enterprises LLC and started manufacturing them here in the USA.

WHAT ARE THE ADVANTAGES OF COYOTES OVER STAUNS?

HOW DO YOU USE COYOTE DEFLATORS?

You simply screw all four Coyote deflators on to your standard tire valve stems and either drive off (Coyote’s only) or wait for them to stop deflating, remove them from the valve stems and then move out. We do, however, recommend that you remove the deflator at the first opportunity to avoid damaging either the tires’ valve stems or the deflators. Drive off with the original Australian Stauns or knockoffs and you void the warranty.

WHERE ARE COYOTES MADE?

Coyotes are made by Americans in the USA. Stauns are made down under in Australia and most all knockoffs are made in China.

WHAT IS THE COYOTE WARRANTY?

Coyotes have a LIFETIME WARRANTY. The Staun and other warranties range from 2 to 5 years and are subject to limitations discussed below.

SELECTING WHAT TO BUY

With Stauns, you have to guess between one of three part numbers (SCVLT, SCV5 or SCVHD) or buy several part numbers. With Coyotes, just one part number covers the equivalent of all three Staun part numbers. The Coyote CEDV2 covers all three Staun part numbers. Kinda like 3 for the price of 1. No other deflator brand has the broad destination pressure range of Coyotes. Typically, 30 PSI is the maximum set pressure. That makes the Coyote CEDV2 a no-brainer for most full-sized overlanders since Coyotes can be adjusted to greater than 30 PSI.

WHAT IS “DESTINATION PRESSURE”?

Destination pressure is defined as the pressure you air down to. Coyotes are totally adjustable to any pressure between ~4 PSI to ~65 PSI. They take your tires from street pressure down to and automatically stop at the destination pressure that you have adjusted them to shut off at. No other deflator on the market handles that destination pressure range.

CAN I BUY COYOTES PRESET TO MY AIR DOWN PRESSURE?

No. All valve stems exhaust air at various rates, particularly TPMS valve stems. This influences the pressure all deflators shut off at. This may also cause them to disagree with the set numbers printed on some brands. Theses claim to be settable to numbers printed on the deflator. Our tests show this to be influenced by the valve stem design. Using long or angled valve stem extensions also affects to resultant shut off pressure.

HOW MUCH FASTER ARE COYOTE VORTEX VENTING DEFLATORS THAN OTHERS?

Coyote CEDV2 are about 20 to 100% faster than all brands tested. The three patented vortex venting exhaust ports literally suck air out of your tires.

WHAT’S THE COYOTE “QUICK CHUCK” (see below) ALL ABOUT?

The Coyote CEDV2 Quick Chuck makes screwing on easy right from the start. The chamfered, threadless lead in leads to half the number of valve stem attach threads compared to other deflators. That means that you can screw them on and take them off in about half the time.

WHAT’S THE MANUAL START RING FOR?

The manual start feature is useful to let the temperature pressure increase air out at mid-day. The Coyote CEDV2 has an easy-to-use Manual Start Ring. For most knockoffs, you are forced to use the small, fingernail notch in the top of the spring shaft making them more difficult to manually start. And are you aware that some other brands have no manual start capability what so ever?

DO COYOTES FALL OUT OF ADJUSTMENT WITH USE?

No, Coyote overcame this Staun and knockoff fault by using hex Lock Collars against a hex Adjustment Caps. All other deflators use round, knurled caps and collars. Your Coyote CEDV2 pressure setting is securely locked in with the use of open end or box wrenches on the hex cap and collar. You can only lock in all others by hand using the knurled cap and collar. If you use tools, you void the warranty on most other brands. Don’t lose your hard-earned settings. Let Coyotes be your deflator of choice.

DO COYOTES FALL OUT OF ADJUSTMENT WITH USE?

No, Coyote overcame this Staun and knockoff fault by using hex Lock Collars against a hex Adjustment Caps. All other deflators use round, knurled caps and collars. Your Coyote CEDV2 pressure setting is securely locked in with the use of open end or box wrenches on the hex cap and collar. You can only lock in all others by hand using the knurled cap and collar. If you use tools, you void the warranty on most other brands. Don’t lose your hard-earned settings. Let Coyotes be your deflator of choice.

I FIND IT HARD TO KEEP TRACK OF ADJUSTMENT CAP ROTATIONS. HOW DO COYOTE DEFLATORS OVERCOME THIS?

Coyotes overcome this by machining a reference mark in the Adjustment Cap. Most other deflators have no marks and leave you guessing, “Did I turn that exactly a fifth turn or not?” The Coyote reference mark makes adjusting your destination pressure a breeze (pun intended)!

WHAT ARE THE DEFLATORS MADE OF?

Coyotes are made from brass versus some competitive brand that are just use saltwater-vulnerable anodized aluminum. Coyote uses stainless steel springs versus some knockoffs that only use standard steel. That rust! Coyotes are the only deflator that shuts off against a soft, flat silicone pad. All others use hard, conventional O-rings. The soft silicone pad means absolutely no leakage at any destination pressure. They are designed and tested for as low as 1 PSI.

WHY ARE MY DEFLATORS SO SENSITIVE TO ADJUST?

One of three or a combination of the three things may be happening; however, Coyote deflators have overcome all.

1. ADJUSTMENT CAP ADJUSTMENT RATE is how much you have to turn the adjustment cap to achieve the desired change. Most deflators adjust at the rate of 10 (or more) PSI per cap revolution. Coyotes adjust at the rate of 4~5 PSI per Adjustment Cap revolution. That means Coyotes are twice as easy to dial in.
2. SCREAMERS: Noise means the piston is bouncing up and down. A bouncing piston means it may shut-off at different pressures with every bounce. Coyotes do not scream.
3. TOLERANCE LEAKAGE: The answer is a little techie. Your adjustment changes when you tighten the Lock Collar. This shuts off the air leakage between the threads and changes the flow rate. Changing the flow rate changes the set pressure. Coyote’s patented piston, O-ring technology overcomes this and makes setting a breeze (pun intended).

DO COYOTE DEFLATORS SHUT OFF AT THE SAME PRESSURE EVERY TIME?

The Coyote CEDV2 is repeatability to within ± 0.2 PSI. The piston O-ring and soft silicone shutoff pad combine to prevent piston bounce and give Coyotes a distinct, decisive shut-off quality. Check out our automated, destination pressure repeatability and life cycle test setup here.

ARE THERE KNOCKOFF COYOTES?

No, because Coyotes are protected by USA patents. However, Staun knockoffs, under many, many different brands, are sold throughout the world. Besides inferior performance, the knockoffs typically do not use stainless steel springs. That’s a nightmare if you wheel on the beach or for that matter, anywhere unless you air up with dehumidified air!

MAY I INSTALL COYOTE DEFLATORS AND HIT THE TRAIL?

Yes, you may install either the Legacy or Vortex Venting Coyote deflators and then hit the trail. But do that with most knockoffs and you void the warranty.

Now, a word to the wise: Given a bashing contest between the rubber valve stem, brass Coyotes and a rock, we are convinced that the rubber valve stem will lose more times than the Coyotes. Accordingly, we recommend that you remove the Coyotes at your first opportunity.

MY DEFLATORS ARE TOO LONG TO EASILY FIT ON MY VALVE STEMS. I HAVE TO BEND THE VALVE STEM TO GET THEM ON. ARE COYOTE DEFLATORS SHORTER?

Coyote deflators are about 3/8” shorter than Trailhead deflators (and knockoffs) making Coyotes easier to fit into certain tight wheel situations.

WHAT IS THE COYOTE DESTINATION PRESSURE RANGE?

The Coyote Automatic Tire Deflator’s destination pressure range is guaranteed to be 4 to 65 PSI. In reality, they work down to 1 PSI and some go as high as 70 PSI. Most all others deflators cover only 6 to 30 PSI.

WHAT GIVES COYOTES IT’S BROAD DESTINATION PRESSURE RANGE?

Coyotes come with two complete sets of springs. One set tops out at 25 to 30 PSI. Coyotes come installed with this low-pressure set. The high-pressure set (up to 60 or 65 PSI) handles most full-sized overlanders. No other automatic tire deflators have two sets of springs. Most all other deflators top out at 30 PSI max.

HOW DO I ADJUST COYOTE TIRE DEFLATORS?

You loosen the Lock Collar and change the Adjustment Cap in or out to increase (CW) or decrease (CCW) the destination pressure. The Coyotes Piston O-ring technology and the Adjustment Cap Reference Mark makes this easy. Each set of Coyotes come with a Quick Setup Guide included in the storage pouch. (click to download a copy). Also, see our more detailed instructions here.

HOW HIGH CAN MY STREET PRESSURE BE?

The Coyotes will either automatically start or you can pull the Manual Start Ring to start airing down under any circumstance. The patented Coyote deflators are designed and tested to handle up to 300 PSI start pressure. We cannot speak for any other brands.

MY COYOTES SEEM TO OCCASIONALLY STICK ON. WHAT’S UP?

This could be due to contamination within the Coyote, but is more likely due to vigorously using the Manual Start Ring. Pulling it hard up, sidewise and letting go of the ring typically jambs the spring shaft up on the piston and stays open for ever. Gently pull and release the ring straight up and down and it will perform normally.

DO COYOTE DEFLATORS REQUIRE MAINTENANCE OF ANY SORT?

Coyote Deflators require no maintenance other than an occasional cleaning. Our dirty offroad environment dictates this. It is highly recommended to always use valve caps and take this simple precaution before each use. Remove your valve cap and briefly depress the valve core to blow the dirt out. Otherwise, the dirt will go into the deflator possibly jamming the piston. Also see the corrosion comment just below.

HOW CAN I TAKE SOME OF THE WORK OUT OF ADJUSTING MY COYOTES?

1. Use your 4X’s TPMS to measure tire pressure.
2. Only reinflate to 5 or so PSI above you desired destination pressure. This saves lots of air up and deflation time versus reinflating to full street pressure.
3. Considering sunny-side tires may be 5 or more PSI higher than shady-side tires, cut yourself a little slack regarding tire-to-tire set pressure.

DO I NEED TO RESET THE DEFLATORS AFER CLEANING?

Yes, but you can minimize the resetting work by following this simple hint. Before disassembly, count the number of threads the Lock Collar is “up” from fully “down”. Better yet, just leave them in place during cleaning. Reassemble with this in mind and your destination pressure setting will be very close. Take note that the number of threads “up” varies from deflator to deflator but this is of no consequence. Click for full details.

SHOULD I LUBRICATE MY COYOTES?

Contrary to other brands, lubrication is not recommended for Coyote deflators. Lubricants collect dirt which leads to malfunction – jamming ON. If you must, do not use traditional lubricants like WD40®, 3 IN ONE OIL®, spray silicon or grease. Only lubricate your Coyotes with a military grade graphite powder that does not contain quartz or other abrasive additives.

WHAT ABOUT CORROSION?

Despite the Coyote deflators parts being made from stainless steel and brass, brass does darken. To minimize this, store them in the storage pouch in your console. Eating salty food like French fries and then using the deflators with salty fingers is also a no, no. If you air up on or near the ocean, your compressor is filling the tire with moist, salty air. The next time you air down, the salty air contaminates the deflator as it passes through. If you frequently wheel on the beach, we recommend cleaning the deflators every so often.

MAY I RUN WITHOUT VALVE CAPS?

This is not recommended! Dirt and other contaminates get in the valve core area. The next time that you use your Coyotes, guess where that dirt goes? Right! Straight into the deflators contaminating and sometimes jamming them ON, regardless of brand. Use valve caps and give the core a “contamination pre-blast” to reduce the chance of contaminates ever entering the Coyotes.

I LOST ONE OF MY COYOTE DEFLATORS. MAY I BUY JUST ONE?

Yes, the CEDV2-1 is the part number for one deflator and is only available direct from Coyote. The CEDV2-2 is a two-pack and comes with a neat little storage tube and Protective Joiner.