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Re: GC Tranny Issues

On Oct 2, 7:20 pm, "GLB" <g...@imagesbyglb.com> wrote:
> I guess I made the mistake of trusting my dealer. Never had a problem with
> them before. I can't get a straight answer as to how much fluid should be in
> there. I've been told 12 quarts, 15 quarts, 13.3 quarts. I never thought to
> check the fluid levels after they serviced it because it never showed any
> signs of leakage and I've been under the truck. The pan wasn't dripping,
> behind the tailshaft is still dry. It's a mystery as to where the fluid, 3
> quarts in about 3 months went to. I don't think it was ever there personally
> 92,505 routine inspection fluid ok
> 97,386 trans flush (Jan)
> 95,932 routine inspection fluid ok
> 103,243 routine inspection fluid ok
> 105,079 routine inspection, fluid ok
> 111,469 Trans problems, filters replaces, fluid changed, codes reset
> (August)
> 111.905 more Trans problems & codes set P0868 low line pressure, P0867 line
> pressure fault, P0740 TCC out of range, P0218 high temp operation. Suggest
> faulty trans front pump
>
> Right now after it sets for 4 hours, when I start it and put it in gear, I
> can red line it without it hardly moving. Of course, it won't do that when
> it's at the tranny shop. 30 seconds later it's off and running fine (almost)
>
> "Jon" <jongodd...@gmail.com> wrote in message
>
> news:1191363788.783122.270960@d55g2000hsg.googlegr oups.com...
>
>
>
> > On Oct 2, 4:23 am, "Matt Macchiarolo" <m...@nospamplease.com> wrote:
> >> How many miles since your last transmission service? Did you check the
> >> tranny fluid yourself between January and March?
>
> >> "GLB" <g...@imagesbyglb.com> wrote in message
>
> >>news:4701c370$0$18931$4c368faf@roadrunner.com. ..
>
> >> >I have a 2001 GC 45RFE transmission with the 4.7 V8.
> >> > Had a trans flush in January at the Jeep dealer.
> >> > Up to March the fluid was ok per Jeep when it was in for other repairs,
> >> > honestly I didn't check because it never showed any indications of
> >> > leaking.
> >> > Beginning of June we headed out of town pulling a small trailer. Half
> >> > hour
> >> > out the trans temp light comes on and check engine light. Putting it in
> >> > neutral and running it turned off the trans temp light but it came on
> >> > again.
> >> > We headed home to swap out the truck for my wifes GC and we continued
> >> > on
> >> > to
> >> > NC from FL without the trailer. Upon return I took the truck to Jeep
> >> > and
> >> > they said it was 3 quarts low of fluid. Somehow I LOST, 3 quarts of
> >> > fluid
> >> > in
> >> > a couple months without any dripping from the pan or spraying back
> >> > behind
> >> > the tailshaft. Hmmm . . . .
> >> > They cleared the codes, pulled the LEAKING pan, replaced both filters
> >> > and
> >> > reinstalled the pan. Everything was fine for awhile. Then the tranny
> >> > started
> >> > acting up again, not shifting right and the fan would come on at a
> >> > light
> >> > like it was hot. No temp light but it threw a couple codes relating to
> >> > front
> >> > pump pressure I was told.
> >> > Jeep wanted almost 4k for a MOPAR tranny, 3 year 80k warranty. A local
> >> > tranny shop put one in (MOPAR, same tranny) for 1k less. 2nd day of
> >> > driving
> >> > when it was put in gear when cold the tranny would slip like crazy for
> >> > about
> >> > 30 seconds untill I assume pressure built up and the torque converter
> >> > engaged properly. Once warm it shifted OK but honestly my old tranny
> >> > with
> >> > its issues shifted quieter & smoother.
>
> >> > Question:
> >> > 1) Would driving it 3 quarts low cause a problem with the "Front Pump"?
> >> > 2) What would cause the NEW tranny to slip so much when first engaged?
> >> > I can rev the engine with the tranny engaged (drive or reverse) and its
> >> > like
> >> > slipping a clutch on a stick shift without the truck hardly moving.
> >> > This
> >> > only lasts like I said about 20-30 seconds.
>
> >> > Frustrated!
>
> >> > g...@imagesbyglb.com
>
> >> > Pet friendly Vacation in the Smokies
> >> >http://www.deepcreekhideaway.com/-Hide quoted text -
>
> >> - Show quoted text -
>
> > GLB,
>
> > Sounds fishy. Like Bill, I have to raise an eyebrow at the 3 qt.
> > figure. Oh well, that's ancient history, right?
>
> > Are you _positive_ that it is a brand new unit, and not a factory
> > reman'd unit? When I was looking at options a little over a year ago,
> > the dealer told me I couldn't get a new trans -- all they used were
> > "factory" reman'd units. Hearsay for both of us, I suppose.
>
> > Why do I ask? While a lag on shift from P to D or R is not unheard of
> > for this trans, it's far more common to see on a high mileage unit....
> > 20-30 seconds is a _long_ time for that kind of lag, no matter how
> > many miles.....do you get that much delay on every cold or first start
> > of the day? If the problem is lessened by putting the transmission in
> > neutral for a few seconds before shifting to D or R, you're showing
> > signs of a worn or seized front pump bushing...
>
> > At any rate, with your symptom and your investment, I'd be heading
> > straight back to the transmission shop......
>
> > Jon- Hide quoted text -
>
> - Show quoted text -

Total volume is of little significance to this excercise, as various
amounts are held in coolers, lines, torque converters, and fluid
passages within the transmission. A filter change uses a couple of
quarts on this transmission, while the total capacity several
gallons.....

If you haven't been informed yet, the fluid passages are different
between park and neutral (hence the manual tells you to run the engine
in neutral if it has overheated, right?). Do the test I listed at a
known "delay" start, just run it in neutral for 10 seconds or so, then
shift into gear. If it makes a marked difference, well then you at
least have a stop-gap measure....but either way, I'd park that sucker
at the shop's front door and leave it there until it was fixed.

Mike et al - along the same lines, this trans is a "Hot, Neutral"
check.

Re: GC Tranny Issues

a few quarts of trans fluid can cause pump damag3e never tow in overdrive
period
and the new trans is junk amd make sure they use atf4 and a relearn of the new
trans is done and have them check pinion factor to make sure tires size is
figured in

GLB wrote:

> I have a 2001 GC 45RFE transmission with the 4.7 V8.
> Had a trans flush in January at the Jeep dealer.
> Up to March the fluid was ok per Jeep when it was in for other repairs,
> honestly I didn't check because it never showed any indications of leaking.
> Beginning of June we headed out of town pulling a small trailer. Half hour
> out the trans temp light comes on and check engine light. Putting it in
> neutral and running it turned off the trans temp light but it came on again.
> We headed home to swap out the truck for my wifes GC and we continued on to
> NC from FL without the trailer. Upon return I took the truck to Jeep and
> they said it was 3 quarts low of fluid. Somehow I LOST, 3 quarts of fluid in
> a couple months without any dripping from the pan or spraying back behind
> the tailshaft. Hmmm . . . .
> They cleared the codes, pulled the LEAKING pan, replaced both filters and
> reinstalled the pan. Everything was fine for awhile. Then the tranny started
> acting up again, not shifting right and the fan would come on at a light
> like it was hot. No temp light but it threw a couple codes relating to front
> pump pressure I was told.
> Jeep wanted almost 4k for a MOPAR tranny, 3 year 80k warranty. A local
> tranny shop put one in (MOPAR, same tranny) for 1k less. 2nd day of driving
> when it was put in gear when cold the tranny would slip like crazy for about
> 30 seconds untill I assume pressure built up and the torque converter
> engaged properly. Once warm it shifted OK but honestly my old tranny with
> its issues shifted quieter & smoother.
>
> Question:
> 1) Would driving it 3 quarts low cause a problem with the "Front Pump"?
> 2) What would cause the NEW tranny to slip so much when first engaged?
> I can rev the engine with the tranny engaged (drive or reverse) and its like
> slipping a clutch on a stick shift without the truck hardly moving. This
> only lasts like I said about 20-30 seconds.
>
> Frustrated!
>
> glb1@imagesbyglb.com
>
> Pet friendly Vacation in the Smokies
> http://www.deepcreekhideaway.com/

Re: GC Tranny Issues

this is a real old thread but i had alomost the same problem. the p0740 dtc followed by the trans temp over light. i stopped right away, had the 02overland towed to tranny shop. days earlier i ran through high puddles.so the 'specialist' thought electrical for sure. 5hours of labour checking voltage and resistance, everything good. i remembered i had changed the tranny fluid 1or2 prior,and thought the tranny was dead. i told them to check the flow and sure enough it lacked. problem trace back to the radiator. replaced it and been good since,3months. always check the flow before anything its so common to have restriction.