03 precedent 48v no oomph hot spring

[Ta2ooz]

Can the solenoid be bypassed, it will kill the regen braking but will it harm anything else?

[55BigBlock]

Originally Posted by TahoeDawgZ71

It's a 2000 DS Regen2 (PowerDrive Plus) Vehicle and your dynamic braking solenoid has failed. It's the solenoid on the driver's side. It has failed in the OPEN position and never closes. When this solenoid closes all power can pass through it. Because it can not close, all power is having to pass through the resistor to operate your vehicle. That is why it's getting hot and that's why you're going so slow. Purchase a new solenoid and replace it. If the new solenoid comes with a built in diode between the two small posts, cut it off before you install it. This system does not use a diode nor a pre-charge resistor on either solenoid.

I hear ya, TDZ71. The doctor is IN the house..

[greg-g]

on the solenoid with the hot spring connect the two big leads together on one post

[TahoeDawgZ71]

You can bypass the solenoid, but the regenerative braking is going to be so strong it's gonna throw you over the cowl. If you bypass the solenoid, fine. But do yourself a favor and un plug the speed sensor on the motor to eliminate the Regen braking.

[mrgolf]

I have a 1999 regen 2. I took the drivers side solenoid off. Saved about 4 feet of battery cable. Disconnected the speed sensor and it seems to run a lot better.
Just for information.

[TahoeDawgZ71]

Originally Posted by mrgolf

I have a 1999 regen 2. I took the drivers side solenoid off. Saved about 4 feet of battery cable. Disconnected the speed sensor and it seems to run a lot better.
Just for information.

Yep, it's just a Sepex car with no Regen feature. If that's what you like there's absolutely nothing wrong with running it that way.

[Ta2ooz]

Thanks again everybody I really appreciate it. If anyone has any gm questions I'm your guy.

[TahoeDawgZ71]

Originally Posted by Ta2ooz

Thanks again everybody I really appreciate it. If anyone has any gm questions I'm your guy.

You do engine tuning? I've got an LQ9 in an 05 Tahoe. PM me

[InVision]

Tahoe I have a question. How did you determine his serial A0020 cart had Regen braking? Would that not be ACxxxx serial? Thanks just trying to understand serials....

M

[TahoeDawgZ71]

Originally Posted by InVision

Tahoe I have a question. How did you determine his serial A0020 cart had Regen braking? Would that not be ACxxxx serial? Thanks just trying to understand serials....

M

I can't tell from the serial. The burning resistor spring on the solenoid and symptoms are what told me what he had. The two digit prefixes had not started yet when his car was made. At this time all electric DS cars were "A" regardless of drive system. That's why when you look at the serial number prefix posted in the stickies you'll see a note that says "Prior to separation of models"