![]() |
![]() |
#1 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
At My Wits End!!
I'm having a problem with my truck. Last weekend I swapped out the granny low 4 speed with a TH400. Everything went perfect with the swap but when I went to start the truck it seemed like the starter was dragging (yes it is spaced out correctly). At first I thought it was a dead battery so I charged it and it didn't help. Put a different battery in and it fired right up. Ran it a while and shut it off, when I tried to start it again, same thing. I thought it was heat soak because after a while it started fine again. I have tried to charge the battery, changed the timing, installed a remote solenoid, and nothing helps. I haven't tried a NEW starter yet or a NEW battery but I have cleaned ALL the connections and even installed new battery cables. All of the ground wires and connection points have been cleaned as well.
I'm asking for your guys' input before I start buying parts I may not need.
__________________
-Scott- Last edited by sjarrett71; 04-09-2011 at 10:27 PM. |
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Mar 2011
Location: Almonte, Ontario, Canada
Posts: 155
|
Re: At My Wits End!!
ttt
|
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Jan 2010
Location: Ormond Beach Florida
Posts: 156
|
Re: At My Wits End!!
Check the bushings in the nose and end cap of the starter.
Last edited by dan s; 04-10-2011 at 08:29 AM. |
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Apr 2002
Location: New Carlisle, Ohio,USA
Posts: 1,404
|
![]()
Is the new ring gear on the flywheel compatible with the starter gear? Count the teeth on the standard flywheel and then count the teeth on the auto flywheel and see if thy're the same.
__________________
![]() ![]() ![]() LIFE AIN'T EASY WHEN YER FAT AND GREASY! GMC= Got More Class! ![]() ![]() |
![]() |
![]() |
![]() |
#5 |
Account Suspended
Join Date: Sep 2010
Location: hingham ma
Posts: 1,721
|
Re: At My Wits End!!
did you put the flexplate on backwards...
sounds like you did |
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
The flywheel went on correctly..but let me ask, how would that affect hot starts?
__________________
-Scott- |
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
The starter and flywheel both came off a running driving truck. I started it a few times while it was still in the donor and it didn't have any issues.
__________________
-Scott- Last edited by sjarrett71; 04-10-2011 at 09:11 AM. |
![]() |
![]() |
![]() |
#8 |
Kid's Mechanic
Join Date: Nov 2006
Location: Kansas City
Posts: 8,241
|
Re: At My Wits End!!
The starter would be suspect . Starts cold but drags hot would be the reason . Yank the starter and let O reallys or Auto Blown do a current draw test .
|
![]() |
![]() |
![]() |
#9 |
Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
|
Re: At My Wits End!!
It sounds like a heat soak problem to me also. There is a guy on here that use to carry a spray bottle of water and when there was a problems starting his truck he sprayed the starter and it would work.
My truck has the same symptoms you describe since I put headers on the engine. Before the headers it would start just fine. I am probably going to install a mini starter from a '95 or so Chevy 350 in the future which should fix the problem. That is what my son had to do on a couple of his trucks.
__________________
'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
![]() |
![]() |
![]() |
#10 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,216
|
Re: At My Wits End!!
I would do a good load test on the battery. If it is strong then the starter is about all that's left.
|
![]() |
![]() |
![]() |
#11 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
|
Re: At My Wits End!!
i'd check the condition of the battery cables and terminals
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
![]() |
![]() |
![]() |
#12 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
The cables are new and all mounting points cleaned with a wire brush.
Posted via Mobile Device
__________________
-Scott- |
![]() |
![]() |
![]() |
#13 | |
Registered User
Join Date: Dec 2008
Location: Yay Area CA
Posts: 2,329
|
Re: At My Wits End!!
If you want to be absolutely sure I would perform a voltage drop test to determine if it's the cables, battery or the starter. Since it's affected by heat I would do the test when cold and when hot were the problem is more of an issue. Here's a video with a good how to.
__________________
1965 GMC shortwide big window 1969 Chevy C20 long (for now) 2005 Silverado 2500HD Crew Cab Quote:
|
|
![]() |
![]() |
![]() |
#14 |
Registered User
Join Date: May 2009
Location: Pinehurst, Idaho
Posts: 311
|
Re: At My Wits End!!
It sounds like the starter drawing too much current to me. Check and see if your battery cables get hot when you're trying to start it.
|
![]() |
![]() |
![]() |
#15 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
The positive does get warm, not to the point of melting or anything though.
__________________
-Scott- |
![]() |
![]() |
![]() |
#16 |
Registered User
Join Date: May 2009
Location: Pinehurst, Idaho
Posts: 311
|
Re: At My Wits End!!
I would still take the starter in and have it tested, Might just save you a lot of trouble
|
![]() |
![]() |
![]() |
#17 |
Registered User
Join Date: Jan 2010
Location: Ormond Beach Florida
Posts: 156
|
Re: At My Wits End!!
Did you check the bushings yet? When they are bad it causes the armature to rub on the magnets and that causes a lot of drag and draws a lot of amperage! Sometimes they turn over great , sometimes they growl and slowly turn , sometimes they just hum. The brushes could also be junk. Just pull the starter,take it apart and see whats up. If you still have your old starter ,does it fit? usually just change the nose CHECK BUSHING Old starter w/new nose, done!
|
![]() |
![]() |
![]() |
#18 |
Registered User
Join Date: Apr 2011
Location: Inman SC
Posts: 29
|
Re: At My Wits End!!
First post,, not new to forum. Been lurking for a while. Great forum, learning every time I log on.
I'm not sure on your truck, but some had a ground strap from the transmission bolt to frame. May have fell off when changing out. Make sure the starter has good ground to block. Steve |
![]() |
![]() |
![]() |
#19 |
Registered User
Join Date: Jan 2007
Location: Madera, California
Posts: 291
|
Re: At My Wits End!!
My 63 GMC is doing the same thing. I going to take the starter off and get it checked. Thanks.
|
![]() |
![]() |
![]() |
#20 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
Got the starter off and checked at the parts store. Guy must have run the test cycle 15 times and it tested good each time. It didn't even get warm to the touch. I had the money so I went ahead and bought a new one anyway. The battery tested fine too. The alternator that was on the truck tested bad so I had the pulley swapped onto a CS144 alternator I got at the salvage yard that tested good. Now I can't wait to get the starter installed and check it and get the alternator swap completed.
__________________
-Scott- |
![]() |
![]() |
![]() |
#21 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
Got the new starter put on. truck fired right up and ran great. Let it run for about 1/2 hour to make sure it got nice and hot. Turned the truck off and it started again without any problems. I guess the starter was just old enough and wore out. I also got the CS144 alternator intalled. Seems to work good but does anyone know how to test the output on one while it's on the engine without taking it to the parts store? I have a voltmeter but that's about it.
__________________
-Scott- |
![]() |
![]() |
![]() |
#22 |
Account Suspended
Join Date: Jul 2006
Location: DFW
Posts: 1,427
|
Re: At My Wits End!!
The usual test is measure the battery voltage with the engine off. 12.6V is a charged battery. Start the engine and measure again. I think 14.5V is about normal for a stock alternator. Since yours sounds unstock it may read higher, or you may need to give it some gas to bring the revs up while measuring.
|
![]() |
![]() |
![]() |
#23 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
I checked youtube before I read your comment. Thanks anyway. It appears as if everything is working fine. Thanks again!
__________________
-Scott- |
![]() |
![]() |
![]() |
#24 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
|
Re: At My Wits End!!
Here's a website with some good info on the CS 144. I suggest you read it even though you already have the alternator on. What year is your truck BTW.
http://temp.corvetteforum.net/c3/zma...ternator01.htm
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. Last edited by VetteVet; 04-14-2011 at 09:44 PM. |
![]() |
![]() |
![]() |
#25 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
|
Re: At My Wits End!!
Thanks VetteVet, that's the artilce I used to wire mine. I only used to 100ohm resister though as it said anything between 35 and 350. My truck is a 72 GMC.
__________________
-Scott- |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|