what is this relay for?

dnehthend

dnehthend

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pretty sure it's a relay, it's in the drop down shelf in the trunk by the amp, it clicks very loudly when I hold the brake pedal down (mash it in far) then again when I lift up off the brake, it's a 93

relay.jpg
 
Mine clicks when I turn the key on and again after the car starts. It has clicked after brake changes but I had to really push down hard on the pedal to make them click. You should hear the same sounds at startup that I do unless I have something wrong. I hear it now only when I either turn the key on and if it starts, it will make the sound again. I could turn the key straight to a start and it would only do it once. Mine is a 94 but built in late 93.
 
I didn't know about any anti-dive thing, I've searched the forum and can't find anything about it. What's its purpose and how does it function?
 
dnehthend said:
I didn't know about any anti-dive thing, I've searched the forum and can't find anything about it. What's its purpose and how does it function?
Click to expand...

Its purpose sounds really self explainitory. :lol:

As for how it does it.... would have to dump the air from the rear bags would be my guess.

Or are you guys saying the rear shocks had the ability via the cars computer to change the valving in the shock to reduce rebound force? Never heard of that eaither. Does the 93 have a little box bolted to the top of each rear shock?
 
ive never seen them, buy my guess is theyre like SC shocks, with some electrical stuff in them..........and just in the back shocks...........
 
Yup - earlier gen 1's had adjustable valves on the rear shocks to prevent dive under braking. On top of each shock was a servo and they were connected to a module in the trunk's plastic tray.
 
Interesting. And it appears to be a 93 only thing. I just checked Autozone and you can get 93 rear shocks but nothing for 94-98.
 
My 94 has them but again, it was made in 10/93 so maybe it slid down the line and got them before they stopped installing them. The clicking is annoying at first but I'm used to it now and it's only when I start it. If it's happening when the brakes are being pressed, that sounds like you might need to bleed them or change the brakes and then bleed them and make for a good pedal.

Shouldn't be any reason for having to press the pedal all the way down fast but I do understand what you're saying. When I replaced my rear brakes, it done it with the first few pedal pushes and the same when I done the front brakes. Bled them and now it doesn't click with the pedal.
 
The '93s had shock damping and all the relays and modules for it reside in the package tray with the exception of the brake pressure switch.

How The Circuit Works


The Shock Damping Control System is activated with the Ignition Switch in RUN. The Shock Damping Module changes suspension tuning by energizing either the Hard Ride Relay or Soft Ride Relay. These relays control two shock actuators which change the damping rate to firm or soft by rotating a valve inside the shock absorber. They also provide a feedback signal to the control module indicating shock absorber mode.

The Shock Control Damping Module adjusts shock absorber damping, providing a soft (plush) ride during normal driving conditions. The suspension changes instantly to FIRM (by the control module) during hard braking, for improved handling.

Brake Line Pressure Switch
The Brake Line Pressure Switch monitors brake fluid pressure in the rear brake line. Above 750 PSI the switch closes which signals the ride control module to switch to hard ride.
Click to expand...
 
See there are so many reasons I want a 93 now. I prefer the second gens looks but between the good drive shaft, quicker ratio P/S pump and rack and the adjustable shocks it really looks cool. Cause of the shocks I would even keep the air ride in it.
 
All that is disconnected, when the non oem shocks are installed. I have the T Bird Monroes on my 93, the connectors for the oem shocks are still there.
Rock Auto has oems for $72 each, but the Monroes work fine, was just happy to get rid of the klunking from the original shock mounts.
I do get a few clicks with the ignition in run, maybe the system thinks its still connected.
 
nolimit94VIII said:
Mine clicks when I turn the key on and again after the car starts. It has clicked after brake changes but I had to really push down hard on the pedal to make them click.
Click to expand...
The idea is to minimize front end dive on heavy braking; the actuators clicking only when you press the brake pedal hard is exactly the way it should be.
 
LaserSVT said:
See there are so many reasons I want a 93 now. I prefer the second gens looks but between the good drive shaft, quicker ratio P/S pump and rack and the adjustable shocks it really looks cool. Cause of the shocks I would even keep the air ride in it.
Click to expand...

Move the battery to the trunk, get some big brakes and keep the gen 2 :D

I'll agree though, this is cool. I've never heard of it.
 
JMiles_T said:
The idea is to minimize front end dive on heavy braking; the actuators clicking only when you press the brake pedal hard is exactly the way it should be.
Click to expand...

Well, now that you mention it, I do remember once having to slam on the brakes at the last second and the front end did stay up and not dive down. I guess it is a cool feature.

As for the other times it has clicked when pressing the brakes hard was while sitting still in the garage, just after a brake change and checking my pedal for any air. After the line pressure is back up with a few presses, it's a lot harder to make it click. I have excellent brakes, can't complain there but I could live without the clicking every time I start the car. People always ask "what's that noise" lol and I always tell them it has to do with the ABS system. Anyway, I can live with it. Have been for over 4 years now.
 
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