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2000 Dodge Dakota Quad Cab

Viper Fan Install

Updates towards the bottom of page.
 
Note; Pre-wire T-stat, relays and fuses into project box before starting job. I did and it made the install go faster.
Disclaimer: This list is a general over view. You are on your own. I take no blame for your install in any way! Good Luck and have fun.

Driver Select Gap Insurance: Our plan includes the gap coverage, deductible coverage, extra special theft benefits, roadside assistance, and rental coverage if your vehicle is a total loss.

Fan Mounting

Hint: Remove fan motor and blades from fan shroud. This way it's easier to work on the fan mounting.

  1. Remove upper and lower fan should. Be careful not to spill anti-freeze or windshield washer fluid
  2. Remove Stock clutch fan and Electric Fan
  3. Remove radiator brace.
  4. Work out details on mounting brackets for the fan
  6. Clean fan and radiator to install weather striping
  7. Tests fit fan mounting and measure for thickness of weather stripping.
  8. Fit and cut the drip edge and to seal of bottom of fan to bottom of radiator. This lower edge of the install should not be watertight. This is so rainwater can drain out the bottom. Duct tape is to give a tight seal. This is a temporary till a later date.
  10. Install one layer of weather stripping on to radiator outer edges to match the fans out edge.
  11. Test fit fan and install needed amount of W/S to seal off top and sides of fan
  12. Recheck fit and install.

 

Wiring

  1. Pre-wire T-stat, relays and fuses in to project box before starting job.

The relay mounted just in front of the battery will handle the load!

  1. Disconnect neg. cable from battery (Safety).
  2. Place your pre-wired in the appox mounting location.
  3. Wire up Fan and T-stat, relays and fuses in to project box.
  4. Mount and wire by-pass / manual switch in to dash
  5. Wire the green wire on the fan control box to radiator fan relay output (pin 87) in the Power Distribution Box.
  6. Checking all wiring
  7. Test run fan and wiring. Hmmm, fix as needed.
  8. Mount project box.

Coolant Recovery

Updated 8/23/2006

Replace the over follow bottle with the one pictured bellow. Follow the link for the full wright up.

http://y2kota.us/rofb.html
 

Other work done

  1. Replaced Radiator Cap.
  2. Cleaned backside of radiators and front face of motor.
  3. Replaced Neg. Battery to ground wire with 2awg copper wiring.
  4. Cleaned and greased battery posts and grounding bolts.
  5. Tied down and greased OEM wire connector for the OEM electric fan.
  6. Light coat of paint on OEM mount for the mechanical fan to prevent rust.
  7. Stored OEM mechanical fan in an upright position.

Parts List

Part Name

Part Number

Source

No. used

Price ea.

Sub Totals

Dodge Viper Fan

P5007266

Dodge

1

$150.00

$150.00

60 A Fuse

1

Red LED Light

2760270

Radio Shack

1

$2.19

$2.19

In-Line Fuse Holder

1

10AWG Red Wire

2780568

Radio Shack

1

$12.99

$12.99

Project Box 6*3*2

2701805

Radio Shack

1

$3.79

$3.79

Drip Edge

99137254202

Home Depot

1

$1.58

$1.58

Weather Strip Tape

77578012247

Home Depot

3

$3.89

$11.67

Aliu Flat Plate 2*36

30699448307

Home Depot

1

$4.83

$4.83

Coolant Recovery Bottle

0-48168-03060

Auto Zone

2

$9.99

$9.99

T-Stat Control

0036752-03647

Pep Boys

1

$39.99

$39.99

Hayden 3647

10AWG Black Wire

1

$2.99

$2.99

2AWG Battery Wire Black

1

$4.99

$4.99

74AMP Relay

RV Parts Store

1

SPDT Black Flip SW

2750711

Radio Shack

1

$2.69

$2.69

25' 2/C Hook Up Wire

2780567

Radio Shack

1

$4.79

$4.79

18Lb Radiator Cap

7018

O'Reilly

1

$3.89

$3.89

10ft Vinyl Tubing

48643025547

Home Depot

1

$2.59

$2.59

Flat Black Spray Paint

20066285388

Home Depot

1

$0.98

$0.98

Wire Connectors

Different Types

Radio Shack

1

$15.00

$15.00

8AWG Power Wire Blue

Other Photos

Before install of viper fan.

Nice room to work on front end of motor.

A shot looking down.

New windshield washer bottle.

Mounted the bottle where the stock air filter box was bolted to the side wall. Used a the type of bottle as the coolant recovery bottle. Used the stock windshield washer pump and rubber mounting ring.

Stock Electric fan vs. new Viper Fan

A/C Relay Wiring.

Wire the A/C override wire to the relay in the PCM. This shot shows where to insert the wire. This will run the fan whenever the a/c is on. The short jumper to the right is so the fog lights stay on while the high beams are on(Check you local laws on this one).

Wiring Diagram (updated 5/30/06)

 7/30/2006

After lots of time studying the FSM, digging around the Dak and way to many trail and errors. Finally able to get the Viper fan to shut off when the Dak is moving at a speed that a fan is not needed. Now with the A/C on, the Viper fan will automatically shut off when the Dakota reaches appox 30mph. When speed drops to appox 15mph the fan will automatically turn back on. In this configuration controller will turn the fan on during heavy acceleration and or when the radiator mounted temperature probe call for cooling. The three other setting can still be used.

1 Manual -- OFF
2 Manual -- ON
3 Auto ON -- A/C off, controlled by engine temperature
4 Auto ON -- A/C on, controlled by truck speed. {controlled by engine temperature, will overrides truck speed shut off feature}

Prior to this new additional control, the viper fan would run continually when the A/C was on and "Auto ON" mode was selected.

NOTE: This mod is not shown in the above Wiring Diagram

 8/23/2006

In reply to the following question in a Dakota Forum...

Anyone know the CFM for a viper fan???

I've been thinking about getting a flex a lite black magic 180 extreme which has about 3300 CFM... and i cant find out the viper fan CFM anywhere...

I'm thinking that 3300 CFM will be more than plenty but wanted some opinions also...

My reply was....

Yea the viper is 4000+ CFM. Keep in mind the shroud helps to pull the air through the entire radiator . This gives a greater cooling effect then a plan fan covering just its own radius on the radiator. You seen guys selling the black magic fans, hear about them burning out and so on. Same holds true for other brands also. I don't recall seeing one tread on any forum about a viper fan being removed because it didn't have enough cooling power or crapping out.

More photos to come or as requested.