1980 Buick
Active Member
- Joined
- Aug 17, 2009
I'm baffled:
Here's the story: I have a 1984 Olds "G" Body (Hurst) with a 2004r Trans. I just bought the car, and with that, all it's "little issues and/ or "Mods". (if any) ... Anyway, I just went all though the car. So now, it's time too take it for a drive ! ... AND: While driving it (for really the first time), I noted there to be NO Torque Converter "Lock-up".
BUT: at "about" 52 MPH, I DO GET "overdrive". I was told this is called "force on". (*said the Trans. Guy)
SO: I decided to "service" the Trans. (new filter, new Solenoid, checked the TWO Pressure switches) ... and then I buttoned it all up. *STILL No T.C.C apply. So then, I decided (after checking the "A" Terminal pwr, / cruise dump switch) to replace the torque converter. Again: I buttoned it all up .... "nothing". (still NO apply). Of note, was this fact that most everyone asked me: "do you hear it "click" when powering it up" ? (powering "A to B") ... My answer was "how" ?, The thing needs to (as I understand it) "MEET" 3rd gear BEFORE Lock-UP can be met ! Therefore, with it running, *how could I "hear anything" ?
*No-one answered that question. (or could).
This made me curious, so I pulled the Trans out, and had a re-builder go "all though it" ... after He did, He remarked that the "nature" (inside the thing) was FINE !. (By "nature", he meant: The clutch's, their "little if any wear", the bands ... everything "over-all". He then remarked that he had NEVER SEEN the (what appeared to be "added") 2 posted pressure switch, in what I think, was mounted in the the "Governor Hsg". I then asked Him: "why, are these people asking me if I hear a "click", (when I can't) when I "pwr." A to B ? again:, (on the pwr. side, INSIDE the Trans. is a 2 Terminal pressure switch that's on the power leg (feeding the TCC Solenoid) that's wired in Series. *That switch MUST be "met", BEFORE the power is supplied to the Solenoid (and THEN, the Computer provides a ground to make it work).
He didn't have an answer.
SO: (For whatever the reason), I looked for another TCC Solenoid *(on an "O'Reilly / Autozone site), and then, I clicked on it. THEN, it HIT ME ! *I saw a "B & M" 2 pole pressure switch "kit" that looked EXACTLY LIKE that of what I have NOW , inside this Trans ! *COULD THIS HAVE BEEN ADDED ? < I think YES >. Talking further, (and trying to understand WHY someone would do this), I decided to "bypass" (or eliminate) that switch, and put it back to where the "polarity sensitive" TCC Solenoid's wired DIRECT. *Note here: there was no external toggle which like the one pictured in this "kit".
Note here as well: The connector terminals were "add-on" (and def. NOT Factory) !! *Further proof of an "add-on" ? *I don't know.
ANYWAY: I drove it (BTW: It now "clicks" just like everyone's asked) ... AND IT WORKED !! *Elated, I drove the car ten miles and "felt" the T.CC. go "in and out" (touching brake pedal etc ...) *Of note here, I should say that I have (and had) a GM "TECH-1" Scanner watching this occur). Things were fine as I said (I observed the "on" (for TCC Apply) on my Scanner Screen, and again ... it worked GREAT.
Another Interesting fact here: I got "T.C.C." AFTER 4th gear was met ! *NOT PRIOR TO 4th Gear as like my other "G" Bodies. *Why ? *I didn't care, as long as I had it.
So, I stopped the car, and turned around to come back "home" (that same 10 miles) ... & NOTHING ! <gone>. *I never saw an "on" again, nor would it "re-apply" that same 10 miles back HOME !
"What Happened" ??? !!!
So, I got back Home, made a 'switch', and installed it from the "A to F" Terminals (on the ALDL), and THEN, I drove it again. I get "apply" EVERY TIME I flip the Switch ! So now, that's where I am. *On the TECH-1, there is no "output" for TCC (To turn it on) ... ALL The parameters: (TPS, Coolant, VSS, P/N etc ...) are all there and Normal ! yet, it's dead in the water !
So NOW what ? *I'm suspect that the Computer MAY BE "bad" ... and: I have some other 'interesting parameters" (I'm seeing on that Scanner). The car runs GREAT, There's just NO TCC until I "flip the switch" that I preface above !
Any idea's / help are MUCH appr. !!! The PROM I-dent is "813" and I cannot "see" anywhere, if in fact THAT is the original PROM.
Thanks for reading / and any help !!! :- )
Tom
Here's the story: I have a 1984 Olds "G" Body (Hurst) with a 2004r Trans. I just bought the car, and with that, all it's "little issues and/ or "Mods". (if any) ... Anyway, I just went all though the car. So now, it's time too take it for a drive ! ... AND: While driving it (for really the first time), I noted there to be NO Torque Converter "Lock-up".
BUT: at "about" 52 MPH, I DO GET "overdrive". I was told this is called "force on". (*said the Trans. Guy)
SO: I decided to "service" the Trans. (new filter, new Solenoid, checked the TWO Pressure switches) ... and then I buttoned it all up. *STILL No T.C.C apply. So then, I decided (after checking the "A" Terminal pwr, / cruise dump switch) to replace the torque converter. Again: I buttoned it all up .... "nothing". (still NO apply). Of note, was this fact that most everyone asked me: "do you hear it "click" when powering it up" ? (powering "A to B") ... My answer was "how" ?, The thing needs to (as I understand it) "MEET" 3rd gear BEFORE Lock-UP can be met ! Therefore, with it running, *how could I "hear anything" ?
*No-one answered that question. (or could).
This made me curious, so I pulled the Trans out, and had a re-builder go "all though it" ... after He did, He remarked that the "nature" (inside the thing) was FINE !. (By "nature", he meant: The clutch's, their "little if any wear", the bands ... everything "over-all". He then remarked that he had NEVER SEEN the (what appeared to be "added") 2 posted pressure switch, in what I think, was mounted in the the "Governor Hsg". I then asked Him: "why, are these people asking me if I hear a "click", (when I can't) when I "pwr." A to B ? again:, (on the pwr. side, INSIDE the Trans. is a 2 Terminal pressure switch that's on the power leg (feeding the TCC Solenoid) that's wired in Series. *That switch MUST be "met", BEFORE the power is supplied to the Solenoid (and THEN, the Computer provides a ground to make it work).
He didn't have an answer.
SO: (For whatever the reason), I looked for another TCC Solenoid *(on an "O'Reilly / Autozone site), and then, I clicked on it. THEN, it HIT ME ! *I saw a "B & M" 2 pole pressure switch "kit" that looked EXACTLY LIKE that of what I have NOW , inside this Trans ! *COULD THIS HAVE BEEN ADDED ? < I think YES >. Talking further, (and trying to understand WHY someone would do this), I decided to "bypass" (or eliminate) that switch, and put it back to where the "polarity sensitive" TCC Solenoid's wired DIRECT. *Note here: there was no external toggle which like the one pictured in this "kit".
Note here as well: The connector terminals were "add-on" (and def. NOT Factory) !! *Further proof of an "add-on" ? *I don't know.
ANYWAY: I drove it (BTW: It now "clicks" just like everyone's asked) ... AND IT WORKED !! *Elated, I drove the car ten miles and "felt" the T.CC. go "in and out" (touching brake pedal etc ...) *Of note here, I should say that I have (and had) a GM "TECH-1" Scanner watching this occur). Things were fine as I said (I observed the "on" (for TCC Apply) on my Scanner Screen, and again ... it worked GREAT.
Another Interesting fact here: I got "T.C.C." AFTER 4th gear was met ! *NOT PRIOR TO 4th Gear as like my other "G" Bodies. *Why ? *I didn't care, as long as I had it.
So, I stopped the car, and turned around to come back "home" (that same 10 miles) ... & NOTHING ! <gone>. *I never saw an "on" again, nor would it "re-apply" that same 10 miles back HOME !
"What Happened" ??? !!!
So, I got back Home, made a 'switch', and installed it from the "A to F" Terminals (on the ALDL), and THEN, I drove it again. I get "apply" EVERY TIME I flip the Switch ! So now, that's where I am. *On the TECH-1, there is no "output" for TCC (To turn it on) ... ALL The parameters: (TPS, Coolant, VSS, P/N etc ...) are all there and Normal ! yet, it's dead in the water !
So NOW what ? *I'm suspect that the Computer MAY BE "bad" ... and: I have some other 'interesting parameters" (I'm seeing on that Scanner). The car runs GREAT, There's just NO TCC until I "flip the switch" that I preface above !
Any idea's / help are MUCH appr. !!! The PROM I-dent is "813" and I cannot "see" anywhere, if in fact THAT is the original PROM.
Thanks for reading / and any help !!! :- )
Tom
