starting problems

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Apr 18, 2007 | 01:56 PM

dino360

Thread Starter

Tuned

Joined: Mar 2004

Posts: 400

Likes: 2

From: South Texas

starting problems

My Bronco with a 5.8 starts and runs fine when cold. After running and warming up, the starter sometimes drags like if a low battery. I have already replaced the battery and the cables and I still get the same problem. It will drag a little bit and then after a few tries, it cranks up properly. Any ideas?

Apr 19, 2007 | 06:31 AM

chevygoneford

Senior User

Joined: Nov 2004

Posts: 162

Likes: 0

check your timing if its to far advanced youll have the problem your having or your starter could be going south

Apr 19, 2007 | 07:59 AM

Scopie

Senior User

Joined: May 2003

Posts: 132

Likes: 0

I had this exact same problem mate. and I have an 84 Bronco XLT with a brand new low comp engine. your symptoms are the same as I had. it felt like the battery was flat when trying to start hot... "rrrru... rrru... rrru..."

I fixed it, by doing the following;
Installing new 750 cca battery.
New cable between battery - starter relay, extra thick
New cable between starter relay & starter motor, extra thicK
New grounding cable between Battery & engine block
New Ground strap between engine & truck chassis.

this all cost me about $200 aud (battery was $150)
I work at Sydney Buses so the mechanics let me at some very thick heavy vehicle starter cable, which i crimped & welded to make the cables listed above.

I put all the parts in at once, so i dont know which bit was the cause, however i did notice once that the cable between the battery & starter relay was *very* hot.

let me know how you go. I have some spare starter cable left over if you want ot pay postage, easily enough for another truck.

-Sean

Last edited by Scopie; Apr 19, 2007 at 08:02 AM.

Apr 19, 2007 | 08:18 AM

Kemicalburns

Hotshot

Joined: Jul 2002

Posts: 14,285

Likes: 12

From: Bend,OR

take the starter down and have it tested. are you running headers? heat will destroy a starter fast

Apr 26, 2007 | 05:14 PM