2000 Isusu Flywheel/Torque Converter

db35192 · 07-22-2007, 07:03 PM

I have a 2000 Isuzu Rodeo 3.2 2WD automatic transmission.g I was driving down the highway around 60mph with no issues. All of the sudden it seemed as I lost all power to the drive train. The engine would still rev up but the car would not accelerate. I immediately stopped the car and turned the engine off. I then tried to restart the engine, with no success. The transmission light is on and the car is in reduced power mode. I then had it towed to the tranny shop that replaced this transmission 8 months ago. The tranny shop stated nothing wrong with the transmission and that the timing belt is broke. I then towed the car to my house, pulled the timing belt covers off and the timing belt is not broke. We tried to turn the car over, but the crankshaft is not turning but you can hear the starter working fine. Is this possible a broken flywheel, torque converter issue?

amigo-2k · 07-22-2007, 09:37 PM

is there oil on the dipstick?

db35192 · 07-23-2007, 08:45 AM

Yes, There is oil. I pulled the access cover to view the flywheel last night. The flywheel turns by hand while the flywheel bolts to crankshaft stay still. It appears the flywheel is broken. Are these flywheels built to separate outside from inside if a weld breaks?

jimbar · 07-23-2007, 12:49 PM

If I can remember correctly, the flywheel bolts to the crank. The torque converter is bolted to the flywheel and is what seprates the crank from the tranny main shaft. Sounds to me like the problem is somewhere in there. IMO most likely the torque converter.

db35192 · 07-23-2007, 01:12 PM

Thanks for the reply's. The flywheel is broken and needs to be replaced.

trooperbc · 07-24-2007, 03:31 AM

Quote:

Originally Posted by db35192

Thanks for the reply's. The flywheel is broken and needs to be replaced.

i'm having a vague memory of this problem being caused by a locating dowel pin not being installed when the flywheel was installed.
does this ring a bell with anyone else?

try a search here or maybe over at
http://forum.planetisuzoo.com/ the forums and search for posts on this and by JLEMOND.

if my memory is correct, sounds like the guys who did the transmission f'ed up and should be responsible.

//bc

trooperbc · 07-24-2007, 03:42 AM

Quote:

Originally Posted by trooperbc

i'm having a vague memory of this problem being caused by a locating dowel pin not being installed when the flywheel was installed.
does this ring a bell with anyone else?

try a search here or maybe over at
http://forum.planetisuzoo.com/ the forums and search for posts on this and by JLEMOND.

if my memory is correct, sounds like the guys who did the transmission f'ed up and should be responsible.

//bc

AHA, I FOUND IT.
http://forum.planetisuzoo.com/viewto...flywheel#55825
and it's not one but two dowel pins. just scoll down to THE ALL CAPS OF JLEMOND:
oh hell here it is:

Quote:

mtbikerjohn wrote:Ok...heres whats up....I crawled under the truck and watched the starter engage the flexplate,while my wife started the truck. The starter engaged the flexplate just fine,the flexplate spun while the starter cranked.It doesn't seem the problem is in the starter. I watched the engine pulleys while she cranked the engine again...No movement..nada..nothing...Doesn't look good...broken bolts? broken crankshaft? I don't understand it..I can turn the pulley with a socket and breaker bar and move the flexplate,so it stands to reason that the crankshaft isn't broke..Then again this is an Isuzu...I'm about to give up and part the ole Troop out...What now? Any ideas?.....

DONT MESS WITH THE TRANNY YET , SOMETHING WEIRD HAPPENED , I SAW THIS HAPPEN A LONG TIME AGO, IF YOU TURN THE CRANKSHAFT SLOW WITH A SOCKET AND WRENCH YOU CAN MAKE THE FLYWHEEL MOVE , NOW TAKE A LONG HEAVY PRY BAR AND WEDGE THE FLYWHEEL TEETH AND THEN TRY AND TURN THE CRANKS PULLEY IN A CLOCKWISE DIRECTION AN D I BET YOU CAN MAKE IT SLIP , ALLMOST GUARENTEE THE CENTER OF THE FLYWHEEL IS BROKEN OUT , AND HWNE YOU TURN IT BY HAND FROM THE FRONT IT IS GRABBING JUST ENOUGH TO SPIN THE CONVERTOR, BUT THE STARTER WILL SPIN IT SO FAST THAT THE CNETER IS DOING JUST THAT THE WHEEL IS SPINNING ON THE PILOT BUSHING I THE FT O OF THE TRANS AND IS SUPPORTED BY THE CRANK BUSHING , THE MOST COMMON CAUSE OF THIS IS IF THE TRNAS HAS EVER BEEN OUT , ONE OR BOTH OF THE ALINEMENT DOWL PINS IS LEFT OUT AND THE TRANS TROQUE CONVERTOR WILL NOT RUN TRUE , I HAVE SEEN THEM JUST BREAK BUT IT IS NOT REAL COMMON, , ONE WAY TO TELL IS REMOVE THE STARTER AND THEN REMOVE THE CONVERTOR BOLTS , UP THRU 95 THERE WERE THREE BOLTS TO REMOVE AND 96 AND LATER THERE SHOULD BE SIX , REMOVE THESE BOLT AND SEE IF YOU CAN MOVE THE FLYWHEEL NOW IF THE CENTER IS BROKEN OUT YOU CAN WIGGLE THE FLYWHEEL ALL OVER THE PLACE, LET ME KNOW IF IT IS BROKEN I AHVE A STACK OF THOSE THINGS 3 BOLT AND THE 6 BOLT .. JERRY

so i can't tell for certain what application they are talking about there, but -- if the tranny shop puts it back together without those pins *again*, it will happen all over again in a short while...if this applies to your components...
\

//bc

trooperbc · 07-24-2007, 03:58 AM

and another one
http://forum.planetisuzoo.com/viewto...flywheel#47160

Quote:

disguiz wrote:here is a link to a couple pics of my broken flywheel
http://i99.photobucket.com/albums/l282/disguiz/flywheel1.jpg
http://i99.photobucket.com/albums/l282/disguiz/flywheel2.jpg

THE MOST COMMON CAUSE OF THE FLYWHEEL BREAKING IS THE DOWEL PINS BEING LEFT OUT OF THE BACK END OF THE ENG , THEY MUST BE THERE ,JERRY

so it souinds pretty convincing to me. hold their feet to the fire !

//bc

db35192 · 07-24-2007, 07:48 AM

Guy's This is good information. How could I prove that they forgot to put one or both of the pins in?

Cat Fuzz · 07-24-2007, 12:42 PM

Eh, automatics don't have flywheels. They have flexplates or drive plates.

/is a stickler for using correct terminology.

BTW, I've seen this same thing happen before on Ford 2.9L V-6 where the center of the flexplate breaks. I discovered there are two different kinds of flexplates for this vehicle. One that has a spot welded hub in the center and one that is one big piece. I replaced the spot welded POS with the one piece and everything is good.

trooperbc · 07-24-2007, 01:41 PM

Quote:

Originally Posted by db35192

Guy's This is good information. How could I prove that they forgot to put one or both of the pins in?

actually there might be 3. go to the isuzu online parts site and put in your info, search for flywheel or "ring, gear" and click on your application year model, and see how many are listed in the "quantity" column
www.myisuzuparts.com

HOW TO PROVE? insist on being there when they take it out. get educated (see isuzu parts site), talk authoritatively...

P.S. PLUS, go to that site and double check that yours actually has these. it was late last night and little time, so check for yourself.

//bc

trooperbc · 07-24-2007, 01:50 PM

Quote:

Originally Posted by Cat Fuzz

Eh, automatics don't have flywheels. They have flexplates or drive plates.

/is a stickler for using correct terminology.\...

yeah well different people have different terminologies...

the isuzu factory manual calls it out as a "flywheel" for both manual and AT
the isuzu online parts site calls it " flywheel ", and sometimes " gear, ring " for the MT

i've always called it a flexplate too, but
JLEMOND calls it a flywheel which is good enough for me ... since he's probably seen and worked on and sold more of these things than all the people combined who have ever posted on this forum. besides, we all know what we are talking about.

ontheotherhand...

//bc

surferfletch · 07-24-2007, 05:55 PM

Threads like this keep me coming back. Thanks for the insight.

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