Go Back   Ford Mustang Forums > Mustang > 5.0 Mustang > 5.0L Tech

Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.

You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.

5.0 Mustangs Tech Forum

5.0L Talk | 5.0L Tech | 94-95 Tech | 1979-1993   1994   1995   Upload Pictures | Timeslips | Power Adders | Mustang Tech 


Reply   Post New Thread
Unread 01-07-2005   #1 (permalink)
Terrible Juan is offline Made Member

2.3L Member


Joined: Mar 2003
Posts: 615 Threads: 56
 Terrible Juan's Country Flag
Lakewood   California
Terrible Juan is on a distinguished road
Send a message via AIM to Terrible Juan
Arrow HOW TO: Upgrade your engine ground cable! *pics*

I've been dealing with a slow starting car ever since I owned this thing. I relocated the battery with a Summit kit a few months ago and used the 4 AWG that it came with and grounded the battery to the quad shock bracket on the frame of the car. Everything was cool, but the car still started up rather slow.

I decided to try out a new ground strap since my friends car started EXTREMELY slow when his battery ground cable was barely making a connection.

I bought some weird stereo amp wiring kit from Walmart for $25. It includes about 15' of 4 gauge cable and a bunch of misc. wires for hooking up a stereo amp and speakers. I used a few feet of the 4 gauge to upgrade my alternator wire and I had PLENTY leftover to hook up this ground strap.

Materials I used:
About 1 1/2' of 4 gauge cable
(2) 4 gauge ring terminals with 3/8 holes
(1) 7/16" course thread bolt about 3/4" long
Heat shrink tubing for 4 gauge wire

Here are some pics I took. This should be helpful, especially if you are just learning how to work on your car.

I bought these cable cutters from Lowes for about about $13. I tested them on a 2 gauge battery cable and it cut through it like butter. These are a must.
http://home.comcast.net/~terriblejua...ap/cutters.jpg

Strip the new wire. I used a razor blade and lightly cut around it
http://home.comcast.net/~terriblejua...trap/strip.jpg

I enlarged the hole of the terminal since its only 3/8" and it needs to fit a 7/16" bolt.
http://home.comcast.net/~terriblejua...rap/dremel.jpg

Secure the lug into something stable. I used a c-clamp since I don't have a vice. Snip off small pieces of solder (1/4" or so) into a pile and place into the lug.

Slide on the heatshrink tubing.

Clean off the exposed wires on your cable. I used sandpaper. Make sure all the wires are nice and tight so it will slide into the lug without much resistance.

Add some flux to the wires if you aren't using solder that already has it. Heat the lug with a torch. My small butane torch (pictured below) did the job but it took a long time to melt the thick solder I used (.050").

As soon as all the solder is completely melted, dip the cable in there and remove the heat. Make sure that you push the cable in as far as you can and hold it steady for about 10 seconds.
http://home.comcast.net/~terriblejua...rap/solder.jpg

Lightly heat the heatshrink tubing with a ligher or torch..
http://home.comcast.net/~terriblejua...heatshrink.jpg

Repeat on both ends and you'll have this.
http://home.comcast.net/~terriblejua...p/complete.jpg

Next, I located a nice source of solid steel to attach the ground strap to. THE HEAD. On my heads, there was a bolt hole free that is tapped for 7/16" course thread. I have stock heads, so if you do too this hole should be there. I sanded off the contact area with 200 grit sandpaper. Sanding off the surface is very important, especially if your heads are painted of rusty. I then found a spare bolt that went right in.
http://home.comcast.net/~terriblejua...rap/mount1.jpg

I pointed the cable straight down and routed it underneath the power steering pump to the swaybar frame bracket.
http://home.comcast.net/~terriblejua...p/swaybar1.jpg

http://home.comcast.net/~terriblejua...rap/mount3.jpg


http://home.comcast.net/~terriblejua...rap/mount4.jpg


The end result is my car starting up much faster, a steady battery gauge, highly increased throttle response, and improved idle. The materials probably cost $10 at most, the cable being the most expensive.

If you have trouble locating 4 gauge wire, buy a factory battery ground cable from Ford or your local auto parts store and modify it as you need. The stock cable is VERY long and you will have plenty leftover.

I suggest all fox owners do this (if you haven't already) as the stock ground connections on our cars are very weak and are hardly sufficient. If you are having problems with some of the things that I just benefitted from, try it
__________________
1991 Thunderbird SC: I <3 Blower Whine.
1993 LX 2.3 Convertible: Less than half of a 5.0
1989 LX 5.0 Hatch: Sold!
Terrible Juan is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Unread 01-07-2005   #2 (permalink)
Stangboy5666 is offline Made Member

5.0L Member


Joined: Oct 2003
Posts: 1,263 Threads: 178
 Stangboy5666's Country Flag  View Stangboy5666's 11 photos
Seattle   Washington
Stangboy5666 is on a distinguished road
Default

Hey Juan I might try this. Did you completely replace the ground wire from your battery with this one you made?
__________________
Cardinal Red '88 GT 5 speed, 99 Contour Electric Dual Fans, Battery relocated, 130 amp alternator, 76mm Mass Air conversion, 75mm BBK throttle body, 5.0L .030 over, BBK SSI, AFR 185cc heads, Comp Cams XE276HR, BBK ceramic longtubes, Spec Stage II clutch, MM front/rear coil overs, MM front LCA's, MM manual brake conversion, Flaming River Manual Rack, 94-04 Cobra front brakes, 99 Cobra IRS, Torsen T2R differential, 3:55 gears
Stangboy5666 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-07-2005   #3 (permalink)
Terrible Juan is offline Made Member

2.3L Member


Joined: Mar 2003
Posts: 615 Threads: 56
 Terrible Juan's Country Flag
Lakewood   California
Terrible Juan is on a distinguished road
Send a message via AIM to Terrible Juan
Default

Quote:
Originally Posted by Stangboy5666
Hey Juan I might try this. Did you completely replace the ground wire from your battery with this one you made?
NO. This does NOT replace your battery ground cable. All it does is reenforce the ground from your car frame to the block. It is very important to do this because practically everything is grounded to your block or the frame.
__________________
1991 Thunderbird SC: I <3 Blower Whine.
1993 LX 2.3 Convertible: Less than half of a 5.0
1989 LX 5.0 Hatch: Sold!
Terrible Juan is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-07-2005   #4 (permalink)
Stangboy5666 is offline Made Member

5.0L Member


Joined: Oct 2003
Posts: 1,263 Threads: 178
 Stangboy5666's Country Flag  View Stangboy5666's 11 photos
Seattle   Washington
Stangboy5666 is on a distinguished road
Default

Oh sorry, I didnt read the end very carefully at all. I see what you did now. It really helped that much huh? Well, I guess I will give it a go when I get my new alternator and install it. Thanks
__________________
Cardinal Red '88 GT 5 speed, 99 Contour Electric Dual Fans, Battery relocated, 130 amp alternator, 76mm Mass Air conversion, 75mm BBK throttle body, 5.0L .030 over, BBK SSI, AFR 185cc heads, Comp Cams XE276HR, BBK ceramic longtubes, Spec Stage II clutch, MM front/rear coil overs, MM front LCA's, MM manual brake conversion, Flaming River Manual Rack, 94-04 Cobra front brakes, 99 Cobra IRS, Torsen T2R differential, 3:55 gears
Stangboy5666 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-07-2005   #5 (permalink)
GhostDog 5.0 is offline Top Dog

5.0L Member


Joined: Aug 2002
Posts: 4,844 Threads: 164
 GhostDog 5.0's Country Flag  View GhostDog 5.0's 20 photos  View GhostDog 5.0's HomePage
Edinburg   Texas
GhostDog 5.0 is on a distinguished road
Send a message via AIM to GhostDog 5.0 Send a message via Yahoo to GhostDog 5.0
Default

So basically you ran a ground wire from the head to the sway bar bracket . ?

I current have my ground for my trunk battery using 0/2 welding cable run all the way to the a/c bracket area. I also have a ground wire run to the rear frame.

I have some thick wire I think I'll try that to see if I notice anything also. My car starts up fast though using a '93 style starter with the starter solenoid built in (hi torque mini style).
__________________
89 GT Hatch: Custom M90 Supercharged w/ Ported Trickflow Trackheat Heads, Stage 1 cam, Streetheat lower / Sheet metal upper, Tweecer RT & PLX Wideband, 75mm TB, 1.6 Roller rockers, 3.73s, MSD 6a, Canton 7qt Pan+ Windage tray, 36LB Injectors, 200 amp Alternator, 75mm Pro-Mas MAF, 190lph fuel pump,Spec Stage 1 Clutch,SouthSide LCA's, Pro 5.0 Shifter, Steeda CC Plates / Springs, FMS Aluminum Driveshaft, New T5 w/ 2.95 first gear, Underdrive pullies, Zirgo 3300Cfm Elec. Fan, AFCO alum. radiator
GhostDog 5.0 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-07-2005   #6 (permalink)
Terrible Juan is offline Made Member

2.3L Member


Joined: Mar 2003
Posts: 615 Threads: 56
 Terrible Juan's Country Flag
Lakewood   California
Terrible Juan is on a distinguished road
Send a message via AIM to Terrible Juan
Default

Freddy, do you have a battery relocation? If so, you probably should run your ground cable out of the trunk and bolt it to the quadshock bracket. The longer the cable, the more resistance there will be. Also, since you grounded the battery to the A/C bracket area, it would still be a good idea to connect the motor to the frame with a cable.

You said you have a ground wire run to the rear frame. Where does the other end connect to? The battery?
__________________
1991 Thunderbird SC: I <3 Blower Whine.
1993 LX 2.3 Convertible: Less than half of a 5.0
1989 LX 5.0 Hatch: Sold!
Terrible Juan is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-07-2005   #7 (permalink)
neo
Guest


Posts: n/a Threads:
Default

Hey Juan, this is a great inspiration to fix my ground cable from the battery to the frame. I once had a problem that caused my entire electrical system to fluctutate and the car would'nt even run. It would shake violently and for the longest time I couldn't figure it out. Well it turned out to be the ground cable that was torn from the battery negative to the strut tower. I couldn't believe it. Well I fixed the cable after a year with the problem and its been another year and well the cable is all corroded and I think it needs replacement since my electrical system, from gauges to lights flicker.
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-08-2005   #8 (permalink)
Terrible Juan is offline Made Member

2.3L Member


Joined: Mar 2003
Posts: 615 Threads: 56
 Terrible Juan's Country Flag
Lakewood   California
Terrible Juan is on a distinguished road
Send a message via AIM to Terrible Juan
Default

Yea, not many people suspect that the ground cable can be the cause of so many problems. Replace that cable with a generic 2 gauge cable from your local parts store. Autozone carries them in various lengths to fit your application. Oh, and your battery negative battery cable should run from the battery to the engine block. At least mine does.
__________________
1991 Thunderbird SC: I <3 Blower Whine.
1993 LX 2.3 Convertible: Less than half of a 5.0
1989 LX 5.0 Hatch: Sold!
Terrible Juan is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-08-2005   #9 (permalink)
ojibway1972 is offline Apprentice


Joined: Jun 2003
Posts: 185 Threads: 20
 ojibway1972's Country Flag  View ojibway1972's 22 photos
Eau Claire   Wisconsin
ojibway1972 is on a distinguished road
Default

When I moved my battery to the hatchback I grounded the battery to chassis and than I went in under the hood and grounded the engine to chassis, and I still noticed it would crank over slow sometime. So I talked to a buddy of mine hes a chrysler tech, he told me anytime you run current threw long power cabes you should get a bigger battery. So I upgraded the wimpy 750 cca battery to a 1000cca battery and that did the trick.
ojibway1972 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-08-2005   #10 (permalink)
GhostDog 5.0 is offline Top Dog

5.0L Member


Joined: Aug 2002
Posts: 4,844 Threads: 164
 GhostDog 5.0's Country Flag  View GhostDog 5.0's 20 photos  View GhostDog 5.0's HomePage
Edinburg   Texas
GhostDog 5.0 is on a distinguished road
Send a message via AIM to GhostDog 5.0 Send a message via Yahoo to GhostDog 5.0
Default

Quote:
Originally Posted by Terrible Juan
Freddy, do you have a battery relocation? If so, you probably should run your ground cable out of the trunk and bolt it to the quadshock bracket. The longer the cable, the more resistance there will be. Also, since you grounded the battery to the A/C bracket area, it would still be a good idea to connect the motor to the frame with a cable.

You said you have a ground wire run to the rear frame. Where does the other end connect to? The battery?
Yes, it's 4 gauge wire like most cars use. I have it bolted onto the top of the battery terminal. I removed the bolt and put that inbetween and bolted it back in.

I have an Optima red top battery and the welding cable is very very thick.

I just added a wire like you described from the sway bar to the back of the a/c compressor bolt with a nut. It seems to have helped. I had no problems with accelleration and seemed to keep my voltage meter slightly higher. I'll keep an eye on it all week to see how it performs.
__________________
89 GT Hatch: Custom M90 Supercharged w/ Ported Trickflow Trackheat Heads, Stage 1 cam, Streetheat lower / Sheet metal upper, Tweecer RT & PLX Wideband, 75mm TB, 1.6 Roller rockers, 3.73s, MSD 6a, Canton 7qt Pan+ Windage tray, 36LB Injectors, 200 amp Alternator, 75mm Pro-Mas MAF, 190lph fuel pump,Spec Stage 1 Clutch,SouthSide LCA's, Pro 5.0 Shifter, Steeda CC Plates / Springs, FMS Aluminum Driveshaft, New T5 w/ 2.95 first gear, Underdrive pullies, Zirgo 3300Cfm Elec. Fan, AFCO alum. radiator

Last edited by white angel; 02-01-2008 at 11:30 PM.
GhostDog 5.0 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2005   #11 (permalink)
Terrible Juan is offline Made Member

2.3L Member


Joined: Mar 2003
Posts: 615 Threads: 56
 Terrible Juan's Country Flag
Lakewood   California
Terrible Juan is on a distinguished road
Send a message via AIM to Terrible Juan
Default

Just make sure that you connect both ends of the ground cable to steel or cast iron, not aluminum. Not sure exactly where you connected yours on the AC bracket. Can you take pics? Interested in where you mounted it.
__________________
1991 Thunderbird SC: I <3 Blower Whine.
1993 LX 2.3 Convertible: Less than half of a 5.0
1989 LX 5.0 Hatch: Sold!
Terrible Juan is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2005   #12 (permalink)
theblackone is offline Apprentice

5.0L Member


Joined: Apr 2004
Posts: 206 Threads: 37
 theblackone's Country Flag  View theblackone's 4 photos
theblackone is on a distinguished road
Send a message via AIM to theblackone
Default

so pretty much you ground the head to sway bar frame bracket?? anyone else know of something i can use here to heat shrink the plastic other than the heat gun you had?? i dont wanna go buy one juss for this.. im correct tho right??? juss ground from your stock iron head to sway bar frame right? im thinking of doing this tomorrow
__________________
1990 mustang GT 5.0 all white auto tranny. Pretty much stock for now except flowmaster mufflers. I can't wait to get back and work on my mustang . I miss laying under the car and wrenching, then having my hand slip and smack myself in the face.
theblackone is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2005   #13 (permalink)
Tominator is offline GT Member

5.0L Member


Joined: Nov 2003
Posts: 2,284 Threads: 99
 Tominator's Country Flag  View Tominator's 39 photos
Cahokia   Illinois
Tominator is on a distinguished road
Default

Any cigarette lighter will work on the tubing.

Nice write up Juan!

That one deserves a place in the AFM Tech section. :thumbsup
__________________
'95 Ranger 5.0 GT40X Tri-y GT40 Intake S-Trim Snow Stage 2 Lowered Baer Racing Brakes Viper Spec Tremec w/Hurst shifter Custom Interior Dakota Digital Dash Corbeau Toplines OZ Racing AM/FM/Mp3/CD/DVD/TV.

2014 GTIG 5.0 Vert.

1989 GT in need of Resto

1996 F150 Eddie Bauer. 351 and mods. Lifted...33's..10MPG!!!
Tominator is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2005   #14 (permalink)
tmoss is offline Senior Member

5.0L Member


Joined: Aug 2002
Posts: 2,004 Threads: 3
 tmoss's Country Flag
Saint Louis   Missouri
tmoss is on a distinguished road
Default

If you put a battery in the trunk and you have welded in sugframe connectors, I highly siggest you drill and place your ground cable attachments points to the subfram connectors.
__________________
Tom Moss
88 GT 5spd Vert 3:73s, stock H pipe with Flowmaster dumped, Crower 15511 cam @ 110 ICL, GT40P heads & 1.7 rockers, Jet-Hot coated MAC P headers, Holley SM2 intake, 70mm TB, and still SD with 19# Explorer injectors. Fastlanecars'dot'com tmossporting.0catch'dot'com/
tmoss is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 01-09-2005   #15 (permalink)
theblackone is offline Apprentice

5.0L Member


Joined: Apr 2004
Posts: 206 Threads: 37
 theblackone's Country Flag  View theblackone's 4 photos
theblackone is on a distinguished road
Send a message via AIM to theblackone
Default

lol but what if my cigarrette lighter doesnt work!!!!
__________________
1990 mustang GT 5.0 all white auto tranny. Pretty much stock for now except flowmaster mufflers. I can't wait to get back and work on my mustang . I miss laying under the car and wrenching, then having my hand slip and smack myself in the face.
theblackone is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply   Post New Thread



Thread Tools



Mustang Photos
Mustang Links    Top Sites    RSS    Link To Us    Add to Favorites    Archive    Terms of Use    Site Rules    Privacy    Contact    Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2011 All Auto Enthusiasts Network

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162