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#4071902 - 07/25/20 05:01 PM 85 CV trunk help
black396 Offline

Registered: 03/16/19
Posts: 3
Loc: fl usa
My 85 CV has the "trunk release" button in the glove box, but, when pressed, nothing happens. It would be nice to transplant the auto pull down mechanism from mid 80s Lincolns. Anyone done that who will chat about the issues?


#4071956 - 07/26/20 06:37 AM Re: 85 CV trunk help [Re: black396]
Old_Guy_Stu Offline

Over the Hill

Registered: 04/28/19
Posts: 1271
Loc: Cleveland, OH
Can't help much with the pulldown, but I know you'll need a constant-hot power line going back there to run it. For the release, grab a test light and see if the actuator is getting power when you push the button. That'll tell you what to look at next.

1988 CVLX Formal Roof (Love Boat) POTM July 2019 & Aug 2020, 53K
E-code lights w/ relays, LEDs w/ switchbacks, 15x8 Ansen slots w/ 255/60 BFG's, Kenwood stereo, various hacks.
1988 CVLX (Destroyer) 1998-2001 driven to death 202K
1988 Squire (Chris Craft) 1996-1998 junkyard rescue driven to death 199K

#4071988 - 07/26/20 10:51 AM Re: 85 CV trunk help [Re: black396]
BigMerc96 Offline
I know nothing
Posting Addict

Registered: 06/05/10
Posts: 19766
Loc: I can see Detroit from here!
The pull-down motors were basically the same from the '80s well into the '90s (at least thru '97, probably later, my '97 has one). Its a simple setup, the latch on the trunklid is pretty much the same as a normal one, except it has an extra switch on it that serves as a limit switch. The pull down motor replaces the striker assembly on the body, that also has a limit switch or 2 on it. When you pop the trunk the switch on the latch tells the pull down motor to move the striker up until it hits the switch in the motor assembly. When you close the trunk, it hits the switch on the latch which tells the motor to pull the striker down until it hits another limit switch when it gets to the "closed" position. The '97 FSM makes it sound more complicated than that, with it talking to the LCM, but I suspect that is simply for the trunk open warning on the dash and maybe the trunk light. I'm pretty sure it is simply just the switches and relay that actually do the "magic".

2006 Audi A6 ~132k miles, stock.
1998 Mercury Grand Marquis LS HPP ~100k miles, slowly acquiring modifications.
1997 Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Contour E-fan Retrofit, Dual exhaust with Magnaflows, cats deleted, MSD Ignition, KYB Gas-A-Justs, P71 front bar, air ride reinstated, Projector retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel retrofit, holistic weight reduction as the parts fall off..
1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12 frown


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