[elky] Re: Monte - Lockup
- From: John Christensen <johncgg@xxxxxxxxx>
- To: elky@xxxxxxxxxxxxx
- Date: Sat, 4 Dec 2010 20:48:52 -0600
Here is the PDF of the insturctions:
http://www.bmracing.com/bmracing/installation_instruction/9500475-08.pdf
Maybe this will shed some light.
Thanks all!
JC
On Sat, Dec 4, 2010 at 8:37 PM, Ray Buck <rbuck@xxxxxxxxxxxx> wrote:
> It could depend on whether he had a normally open or normally closed 4th
> gear switch, I'd think. If it was a normally closed switch, it could be
> grounding the solenoid any time it's out of 1st gear, causing it to lock in
> 2nd and 3rd, then unlock in 4th. Why it worked the first time and why the
> switch didn't kill it is beyond me. I'd THINK that the switch should
> prevent the +12v from being applied to the hot side of the solenoid. But if
> it only prevents the kit from applying a ground, then the ground could be
> coming from the 4th gear switch.
>
> r
>
>
>
> On 12/4/2010 6:50 PM, Robert Adams wrote:
>
> Well you don't have the valve body controlled lockup. I
> have never heard anything say anything about removing a spring in the tcc
> valve train. Just one valve and it's a long spool valve in the valve body
> which the TCC solenoid goes up against.
>
> As for the solenoid the TCC is a two wire on your
> Monte.
>
>
> If it feels like it's locking up press the
> brake just enough to get the brake lights to come on. This will cut power to
> the solenoid. If it's still locked up then there is something wrong
> internally. Either a bad TCC solenoid worn TCC valve etc.
>
> With any TCC not unlocking with a 2004r you can
> first try to replace the solenoid. If the problem is still there then the
> TCC valve bore is worn and the solenoid can't exhaust enough fluid and some
> of it ends up going to the TCC and causing it to lockup. Worn TCC valves are
> very common on 2004rs and 700r4s. There is a replacement valve with a teflon
> seal that fixes it. I think I still have one. Often a new TCC solenoid
> bandaids the problem because it is made to exhaust more fluid than the stock
> one.
>
> So... Many times the stock solenoid works just fine
> it's actually the valve leaking too much fluid and the new design solenoid
> fixes it (sort of).
>
>
> Robert Adams
>
> On Sat, Dec 4, 2010 at 7:32 PM, John Christensen <johncgg@xxxxxxxxx>wrote:
>
>> Chris sent the lockup kit for the Monte and I installed it today. Tom came
>> over and we took it for a test drive.
>>
>> At first it seemed to work as advertised. It locked up at the speed when
>> the red LED turned to green. After driving a bit, and coming to a stop, it
>> seemed to stay locked up. Then it was jumping in and out of lock. Even at
>> 2nd and third gear. Something isn't right with it. There is an on/off switch
>> on the unit. Pushing that to off didn't unlock it. What was odd, was that it
>> would be unlocked, then lock in the lower gear. So it isn't stuck on, it is
>> getting a completed circuit somehow, when it is not intended.
>>
>> I am thinking there are several things that could be causing this. In the
>> instructions, it talks about a spring that needs to be removed in the valve
>> body. This is for early models (before 89) that have the valve body
>> controlled lock up. Anyone know about this? In the text, it mentions: Custom
>> transmissioninstallations utilizing early models with valve body controlled
>> lockup speed may requite some modification to operate correctly. locate the
>> converter clutch valve train in the valve boday. Deactivate the converter
>> clutch shift valve by trmoving the spring holding the valve train in the OFF
>> position. This will allow the converter clutch shift valve to move to the ON
>> position, and ensure that control pressure is always available at the
>> converter clutch apply valve after the first gear shift. It may also be
>> necessary to remove the pan to identify which kind of solenoid and wiring
>> sceme is used on your particular unit.
>>
>> It also says there are 2 types of solenoids, one wire and 2 wire. The one
>> wire needs only the + to go to the pin A. Where A is + and D is ground (I
>> grounded the D pin). So maybe if i lift the ground on the case, it will
>> work. Looks like I need to get in the pan to find out. I may have a picture
>> of it when it was open and upside down on the bench. I'll have to check.
>>
>> I spoke to Ray on the phone, and he was suggesting that the 4th gear
>> switch internally could be a type that is either normally open, or normally
>> closed. Because the kit has a wire on the 4 pin connector that goes to a
>> ground on the case, I am wondering if that is a conflict, and may be causing
>> it to engage in the lower gears. I haven't tried it without the ground wire
>> hooked up.
>>
>> I was unable to get together with B&M tech support. It's Monday through
>> Friday. Next stop is the tech support on the web site. Tom offerd the lift
>> at the school on Sunday, but I want to research it before tearing in to the
>> pan.
>>
>> At least I know the lockup works. I don't think it is sticking, because it
>> is sort of randomly engaging in 2nd and third when it has already
>> disengaged. It is also locking with the LED showing red. So Ray may have
>> something there on the grounding conflict.
>>
>> Just wanted to run this past everyone. I have wired the same kit on the
>> 350C of the El Camino before going back to computer control, and it worked
>> flawlessly for years. I have a feeling it is the ground on the case, or the
>> spring in the valve body. I'll get it sorted out eventually.
>>
>> That was the automotive therapy for today.
>>
>> JC
>> ---
>> John Christensen
>> 1984 El Camino "Elkenstein" 350 TBI
>> NECOA #042 http://www.myelcamino.net
>> Saint Charles, IL
>> ---
>> John Christensen
>> 1984 El Camino "Elkenstein" 350 TBI
>> NECOA #042 http://www.myelcamino.net
>> Saint Charles, IL
>>
>>
>>
>
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