Trans brake issues

dussault.racing · 09-03-2012, 06:33 PM

Trans brake works fine before warm up. After 1 or two times in reverse the plunger wont move unless i put a little pressure on it with my finger. After the car cools down and not running it seems to work every time in reverse or with the button. We had a solenoid out of another tranny and it does the same thing. Possible 2 bad solenoids or something else????? We checked voltage and its fine.

C and W Racing · 09-03-2012, 07:45 PM

Have you checked the ground? You say you checked the voltage, did you check it at a time it wasn't working properly? Is the wiring sufficient for the amperage it may need?
Chuck

Bill Baer · 09-04-2012, 01:10 AM

Quote:

Originally Posted by C and W Racing

Have you checked the ground? You say you checked the voltage, did you check it at a time it wasn't working properly? Is the wiring sufficient for the amperage it may need?
Chuck

I'm with Chuck on this one, I ground my solenoid to the battery, so I would check the ground or try running a jumper wire to ground the solenoid.

James Sessoms · 09-04-2012, 06:22 AM

I think the guys are on the right track with the power and grounds. Let me add, what type of delay box do you have. I had a similar problem chased it all season. Tbrake would hold fine get to first round and it would not hold. Turns out I had one of the first mega 450 boxes. They had bad output drivers. once it heated up it would not provide enough amps to hold the brake. sent it back to digital delay they fixed no charge. good luck

James Sessoms
SG2444

dussault.racing · 09-04-2012, 01:59 PM

The voltage is the same when it works or doest. Im gonna try the ground to the batt.... Its been working fine for years, After getting the trany back from freshing it started acting up. Its a 350 box. we checked voltage at the box and it stays the same.

dussault.racing · 09-04-2012, 04:36 PM

Well the ground is not the problem!!!!!! Gonna have to wait till tomm till i can pick up another solinoid.

pmrphil · 09-04-2012, 09:14 PM

voltage may show the same, but the AMPERAGE is what will hold the solenoid in, try it with a new 12 ga. wire direct from the battery.

dussault.racing · 09-06-2012, 01:34 PM

Thanks for all the replys. It seems to be 2 bad noids. We got the new one in this morning and from the jump it had a better, stronger "snap" than the other 2. Only had enough fuel for 1 good warm up but it worked every time after getting hot.

09-03-2012, 06:33 PM	#1
dussault.racing Junior Member Join Date: Jan 2011 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Trans brake issues Trans brake works fine before warm up. After 1 or two times in reverse the plunger wont move unless i put a little pressure on it with my finger. After the car cools down and not running it seems to work every time in reverse or with the button. We had a solenoid out of another tranny and it does the same thing. Possible 2 bad solenoids or something else????? We checked voltage and its fine.

09-03-2012, 07:45 PM	#2
C and W Racing Senior Member Join Date: Jul 2007 Posts: 557 Likes: 6 Liked 13 Times in 3 Posts	Re: Trans brake issues Have you checked the ground? You say you checked the voltage, did you check it at a time it wasn't working properly? Is the wiring sufficient for the amperage it may need? Chuck

09-04-2012, 06:22 AM	#4
James Sessoms Junior Member Join Date: Oct 2010 Location: Suffolk, VA Posts: 15 Likes: 0 Liked 0 Times in 0 Posts	Re: Trans brake issues I think the guys are on the right track with the power and grounds. Let me add, what type of delay box do you have. I had a similar problem chased it all season. Tbrake would hold fine get to first round and it would not hold. Turns out I had one of the first mega 450 boxes. They had bad output drivers. once it heated up it would not provide enough amps to hold the brake. sent it back to digital delay they fixed no charge. good luck James Sessoms SG2444 __________________ James Sessoms 2444 S/G

09-04-2012, 01:59 PM	#5
dussault.racing Junior Member Join Date: Jan 2011 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Re: Trans brake issues The voltage is the same when it works or doest. Im gonna try the ground to the batt.... Its been working fine for years, After getting the trany back from freshing it started acting up. Its a 350 box. we checked voltage at the box and it stays the same.

09-04-2012, 04:36 PM	#6
dussault.racing Junior Member Join Date: Jan 2011 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Re: Trans brake issues Well the ground is not the problem!!!!!! Gonna have to wait till tomm till i can pick up another solinoid.

09-04-2012, 09:14 PM	#7
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 456 Likes: 1,796 Liked 346 Times in 150 Posts	Re: Trans brake issues voltage may show the same, but the AMPERAGE is what will hold the solenoid in, try it with a new 12 ga. wire direct from the battery. __________________ Phil Molski PMR Performance S/C 1623

09-06-2012, 01:34 PM	#8
dussault.racing Junior Member Join Date: Jan 2011 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Re: Trans brake issues Thanks for all the replys. It seems to be 2 bad noids. We got the new one in this morning and from the jump it had a better, stronger "snap" than the other 2. Only had enough fuel for 1 good warm up but it worked every time after getting hot.