Computer Help
 Contact
 Search
 
  
    

Jeep JK Lift Kits
Black Diamond JK Lift Kits
Black Diamond PR
Poly Performance JK Lifts
Teraflex Jeep JK Kits
Skyjacker JK Kits
Rancho Jeep JK Kits

Rubicon Express JK Kits

ATV World
ATV Clubs
ATV Tire FAQs
ATV Tire Mounting
Cool ATV Products
LiteFoot Track Sys
ATV Lift Installs
Quad Tire Reviews
ATV Laws By State
ATV Repair
ATV Manuals

Jeep Project CJ-7

An ongoing Budgeted Rebuild/Build up of a Rock
Crawling Machine.

Offroaders Guide to Gearing up for Offroad
From Basic Equipment to Well Equipped.  An extensive list guide to help you prepare your vehicle for the offroad.


Trailering Safety and Trailer Hitch Information


Off-Road Truck Driving Techniques and Safety

25 Top To Do Tips Before Going Offroad
 

Troubled
Computer?

Got Pop-ups
Spyware & Viruses?
Offroaders.com feels your pain. Let our Geeks help you...
RalphtheGeek.com

 


Rausch Creek
Off-Road Park

 

Jeep Central
From Jeep History to Tech Specs and Projects.  This section is all about Jeeps.
Jeep Technical Info
Engines
Transmissions
Transfercases
Axles
Engine Swaps

Installing 23,000 Volt Offroad Lights


Onboard Air
Converting a York
AC Compressor
to Pump Air

What are HID Lights?

Onboard Air
Converting a York
AC Compressor
to Pump Air

Warn 9500i Winch Installation

Warn X8000i
Winch Installation

 

HEI Ignition
Installation & Review

Lockers, Limited Slips &
other Differentials Explained

 

 

 

Wheeling in the Valley of the Ferns

1.jpg (70086 bytes)
Tellico North Carolina


Paragon Adventure Park
Rock Krawl

Thousands more photos here..

 
 

 

 

 

Jump Starting a Dead Battery
It happens to just about everyone eventually. You turn the key in your vehicle only to discover you got a dead battery thanks to the dome light that was left on over night.  While you may have a spare tire in your trunk, you probably don't have a spare battery.  But thanks to your friend, and a pair jumper cables, you won't have to call AAA or a tow truck service to breath life back into your battery.  However simply hooking up the jumper cables randomly is not the correct way to successfully jump a car battery and commonly ends up in an unsuccessful attempt at a jump start or even worse.  This article will help to explain the do's and don't in jumpstarting a drained battery.

12 Volt Wiring - Distance and Amps to Gauge Chart

Converting Candlepower to Watts and
vice-versa & Other Offroad Light Information

Automotive Wiring Tips & Techniques

Lead Acid Battery Terminology

Using LED lights in your Vehicle

Before you need a Jumpstart

Obviously rule number one if you ever intend to jump start your vehicle is you'll need a set of jumper cables.  Jumper cables come in many different grades from the very cheap dollar store quality to professional level.  If you don't have a set consider getting a set.  While you don't need top of the line professional quality cables to carry around until you might someday need them, try to avoid buying the cheapest set you can find.  Typically these cheap sets have less than adequate gauge of wire to carry the current a jump start will draw.  This can overheat a wire on a hard to start engine which has been known to melt the cable insulation and burn a few fenders.  Also be aware that simply looking at a cable's diameter in the store is not going to tell you much.  Its common to see thicker than necessary insulation on cheap cables to give the appearance of heavy gauge wire.  Instead look for the gauge of the wire, which should be no less than 4 Gauge (less would have a higher number) for cables under 16 ft. long and rated for a minimum of 400 amps.  Also look for the UL Listed symbol.  The clamps are another thing to look at.  Many vehicles connect to batteries using the side posts of a battery.  So your cables should include an extended jaw that has grooves that will conform to theses side posts since that is where you might be doing the jump.  The clamps should also have a heavy duty spring to clamp down strongly onto the posts which will lessen the chance of producing sparks during the current draw and increasing the amount of current transferred to the vehicle being jumped. 

Something important to note is that there is the small possibility of an explosion during a battery jump.

The reason for this is that Lead Acid batteries do emit hydrogen gas when they discharge.  Hydrogen gas is flammable, even explosive when it is concentrated in an area.  During a battery jump or even when connecting the cables to the terminals, a small spark "could" ignite the hydrogen gas.  But the possibility if this happening is remote because it takes a concentration of hydrogen gas to amount to a dangerous situation and the battery would have had to sit for a long time with little to no air circulation.  Though it is a remote chance, there is always the chance so to avoid this kaboom, the key is to connect the cables in the proper order as outlined below.

Jump Starting the Car

So now you need a jump.  Your friend offers to give you a jumpstart.  You may or may not have a set of jumper cables so if you don't, you'll be borrowing a set.  There's a right way and a wrong way to jump start a battery.  The first thing to do is get into position.  The car that will be just starting your car should be parked front to front with your car so that connect the jumper cables with plenty of slack to spare.  Cable lengths vary from 6 feet up to 16 feet or longer.  Have a look to see which side of the car your battery and their battery are and park the jumping car accord to the length of your jumper cables and battery positions.  Do not allow the vehicles to touch in any way.  Turn off the ignition in both vehicles and engage both parking brakes.  Automatic transmissions should be in park while manual transmissions should be in neutral. Turn off all accessories and lights in the vehicle receiving the jump.

  1. Raise both hoods and locate the batteries.  If the jumper cables will be stretched tight, re-position the boosting vehicle.  Also note that when attaching jumper cables make sure that cables do not dangle down into the engine bay where they may come in contact with fans or fan belts.
     
  2. Start by removing or fold back the terminal covers (if equipped). Clear away any corrosion on the terminals.  Note that at this point if one or both terminals on the vehicle getting the jump are seriously corroded, it's a good idea to clean them now so that after a successful jump, the battery will get an efficient charge.
     
  3. Attaching the Jumper Cable - Start by clamping the RED positive (+) jumper cable clamp to the positive (+) side terminal of the dead battery, also color coded RED. Ensure that both sides of the jumper cable clamp are firmly in contact with the terminal.  It sometimes helps to wiggle the clamps so that the teeth dig into the lead terminal.
     
  4. Secure the other end of the RED positive (+) jumper cable clamp to the RED (+) positive terminal of the good battery.  Once again make sure that the jumper cable clamp firmly in contact with the battery terminal.
     
  5. Next secure the BLACK negative jumper cable to the BLACK negative (-) terminal on the good battery.
     
  6. Last connect the BLACK negative (-) jumper cable to an unpainted bare metal part such as a bare bolt or bracket on the engine of the dead battery vehicle.  This bare metal part should be away from the dead battery and away from the fuel system components such as the carburetor and fuel-injection system parts.  Attaching to a bare metal part rather than the negative terminal on the battery will give you a solid ground and also reduce the potential of igniting any buildup of hydrogen gas.
     
  7. Make a last check to ensure no cable is hanging down into the engine bay and that the clamps are securely connected. 
     
  8. Start the engine on the running vehicle.  Bring the engine speed up just above idle but do not race the engine.
     
  9. Attempt to start the engine on the disabled vehicle.  If the dead battery was in relatively good condition and was drained by a light or accessory left on, it should start immediately.  If the battery was old it may not start immediately .... see step 10. 
     
  10. If the dead battery vehicle will not crank over (you might hear a clicking sound), recheck the jumper cable clamps and try again.  If the dead battery vehicle still will not turn over, allow the running vehicle to run for a few minutes and supply a charge to the dead battery.  Then try again.  If the dead battery vehicle turns over but does not start, do not keep trying.  This could cause damage to the starter.  There may be other issues and you may have to troubleshoot these.
     
  11. If you do get a successful start, keep the cables connected for about three minutes as both engines run and supply a small charge to the dead battery.
     
  12. After a few minutes of running, it is time to disconnect the jumper cables.  Leave the engines run and begin disconnecting the jumper cables in reverse order.   DO NOT allow the cable clamps to touch each other or drop into the engine bay.

    1. Disconnect disabled negative terminal (attached to bare metal on engine)
    2. Disconnect good battery vehicle negative terminal.
    3. Disconnect good battery positive terminal.
    4. Disconnect the disabled positive terminal. 
     
  13. After the successful jump, keep the jump started vehicle's engine running for about approximately a 1/2 hour.  Keep in mind that an alternator is designed to maintain a fully charged battery and not to fully charge the battery from dead.  So once you shut down the vehicle, it may need another jump start so it's a good idea to get it to a suitable location to do so if necessary.  Also consider placing the discharged battery on a certified charger for at least 8 to 12 hours to bring the battery up to full charge.  

 
12 Volt Wiring Gauge Requirements at specific Amps for Automotive Electrical Systems

HEI Ignition Installation and Review

Using LED lights in your Vehicle

LightForce Driving Lights Install/Review

What are HID Lights?

Jeep CJ Gauge & Sender
Troubleshooting and Diagnostics

TJ Diagnostics Codes

 

Jeep Project CJ-7

An ongoing Budgeted Rebuild/Build up of a Rock Crawling Machine.

All Terrain 
Mud Terrain
Tire Reviews & Info

All Terrain
AT Tire Reviews


Mud Terrain
MT Tire Reviews

 

 

Ramp Travel Index
RTI / Ramp Travel Index What it is and how to calculate it, with and without the ramp.

Offroad Tire Info
P-Metric Tire Sizes Conversion to Inches
Tire Terminology
Wheel Terminology
How to Pick the Right
Tires for your Truck
Truck Tire Info
Tires - What Hits What Fits
  
All Terrain  Mud Terrain
Tire Reviews & Info
Mud Terrain MT Tire Reviews
All Terrain AT Tire Reviews
Super Swamper Bogger
Super Swamper SSR
Super Swamper SX
Super Swamper Vortrac
Interco IROK TSL
Super Swamper LTB
Super Swamper TSL
Super Swamper TSL Radial
Super Swamper Narrow
Interco SS-M16 Swamper
Thornbird TSl Radial
Thornbird TSl Bias
Thornbird TSL
Parnelli Jone Dirt Grip
BFGoodrich Krawler
BFGoodrich MT T/A KM
BFGoodrich MT T/A KM2
BFGoodrich AT TA KO
BFGoodrich Mud King XT
Bridgestone Dueler MT
Cooper Discoverer ST
Cooper Discoverer STT
Cooper Discoverer ST/C
Federal Couragia MT
Firestone Destination AT
Firestone Destination MT
General Grabber MT
General Grabber AT2
Green Diamond Icelander
Ground Hawg Mud Tire
Hankook Dynapro MT
Hankook Dynamic MT RT01
Hercules Terra Trac MT
Hercules Trail Digger MT
Kelly-Springfield Safari DTR
Kelly-Springfield Safari MSR
Kumho Road Venture MT
Kumho Road Venture KL71
Kumho Road Venture AT
Dick Cepek Mud Country
Dick Cepek F-C II
Dick Cepek Fun Country II
Dick Cepek Fun Country Nylon
Dick Cepek Fun Country Kevlar
Mastercraft Courser MT
Mastercraft Courser HTR
Mastercraft Courser HTR Plus
Maxxis BigHorn Radial
Maxxis Creepy Crawler
Maxxis Trepador
Maxxis Buckshot Mudder
Maxxis MA-SW
Maxxis M-8080 Mudzilla
Maxxis MT-754 Buckshot
Maxxis MT-753 Bravo
Maxxis MA-751 Bravo
Maxxis MA-S2 Marauder II
Maxxis MA-S1 Marauder
Maxxis MT-762 BigHorn
Nitto Mud Grappler
Nitto Terra Grappler
Nitto Dura Grappler
Nitto Dune Grappler
Nokian Vatiiva MT
Pit Bull Rocker Extreme
Pit Bull Maddog
Pit Bull Growler
Goodyear Wrangler MT/R
Pro Comp Xterrain
Pro Comp All Terrain
Pro Comp Mud Terrain
Pro Comp Xtreme AT
Pro Comp Xtreme MT
Toyo Open Country MT
TrXus Mud Terrain
TrXus STS All Terrain
Michelin LTX A/T
Michelin LTX AT2 Press
Michelin LTX AT2
Mickey Thompson MTZ
Mickey Thompson MTX
Mickey Thompson Baja Claw Radial
Mickey Thompson Baja Claw Bias
Mickey Thompson Baja Crusher
Mickey Thompson Baja ATZ Radial SLT
Competition Claw
Dunlop Mud Rover
Federal Couragia M/T
Nitto Dura Grappler
Yokohama Geolandar
  
Dick Cepek's 2008 F-250 Super Duty Project Vehicle Project CRUSHER
 
Mud Tire Reviews
Product Reviews
Tire Reviews
 
  
 
ATV Tire Index
Carlisle 489 Titan
Dunlop Quadmax
Dunlop Quadmax Sport
Quadmax Sport Development
Highlifter Outlaw
ITP Holeshot
ITP Holeshot MX
ITP Holeshot ATR
ITP Holeshot XC
ITP Holeshot XCR
ITP Holeshot MXR
ITP Holeshot XCT
ITP Mud Lite
ITP Mud Lite XTR
ITP Sandstar
Kenda K538 Executioner
Tubeless Bearclaw K299
Kenda Klaw K532
Kenda Klaw K533
Kenda K534 Sand Gecko
Maxxis M961/M962 Mud Bug
Maxxis Rooster Paddle Tire
Maxxis M917/M918 Bighorn
Maxxis M966 Mudzilla
Super Swamper TSL ATV
Super Swamper TSL Vampire
Super Swamper Vampire EDL
Swamp Lite ATV Tires
 
ATV Tire FAQs
ATV Tire Mounting
ATV / Quad Links
 
Quad Tire Reviews Index

 


Off-Road Lights
by LightForce Product Review / Installation.
from Off-Road Lights

 


Jeep Dana 300 TeraLow - 4:1 Gearset for the Dana 300 Transfer Case

Jeep Trans Swap
T-18A Transmission Rebuild & Short Shaft Conversion
  


Black Diamond Suspension Lift install for CJ-7

 

From the
Department of Cheap   Tricks and Useful Tips

  
Ultra-Cool Hand Throttle for Free!

Jeep V8 Swap Tips

The Exploding Clutch

Radiator Protection using 6 bucks worth of material

Cracked Under Pressure - Fixing a smashed fingernail

A Cheap, effective alternative to undercoating

Home-built Saginaw Gearbox Brace for the cost of lunch!

Ammo Box Storage - Mounting Them for Quick Disconnect

Home-built Serious Skid-Plate protection for the Oil Pan for under 20 bucks!