Search results

Does anyone make new printed circuits for the Grand Prix gauge clusters? I have checked a few parts houses and cannot find them. I have two, the original one my car came with and the donor tach cluster came with. Both are "useable", but like when restoring my K5's dash I'd like a new printed...

So long story short it's F-body, 307 Cutlass or custom hoses. Thank you for the input. I just pulled the trigger today on a TBI (Truck) Pulley kit on Ebay. I guess the truck/TBI kit is the way to go for me as my '89 K5 is 3 feet to the side of the GP so I can look at them for reference.

I am looking to do the TBI serpentine belt conversion on my '85 GP. I have an '89 K5 Jimmy, so I am pretty familiar with the system already. I know I need a new reverse flow water pump. I know I need to relocate the alternator to the driver side, and I've done CS style alternator swaps on a...

I checked Rock Auto, Napa, Ebay and the G-body parts houses. I just bought a cable from Dixie. $47.xx to the door.

Spent some more time this evening testing the system. FOUND THE ISSUE!!!!!! Removed the ECU and found the pink and white silicone tubes that plug into the firewall bulkhead loose. They looked to be originally glued into the firewall bulkhead fitting, but the glue let go and the hoses came...

Both vac switches were very easy to get out. And I also have the glovebox out at the moment, so the vacuum hose connectors behind there is tight. None of the hoses look bad. Tonight I am plugging the purple/pink hose behind the controller and pulling vac under the hood. Isolating the main...

Figured as much. Recap of where I'm at on the HVAC system. -Tested all the vacuum actuators and they all hold vacuum perfect. -Was able to re-built and get both existing vac switches to stop leaking. -Bought a new 9-port ACDelco vacuum switch. -Found that NOS ACDelco control panel on ebay if...

Well I cleaned up both o-rings, bent the metal tabs so it's held togeter tighter, and low and behold I have no vacuum leaks now on either switch in the control panel. However, I am 99% sure I still have a leak in the purple/pink vacuum hose that goes to the engine. My question is, where can we...

69hurtolds- Thanks for that info. the ebay link you shared does show the 9 port and 2 port switches!! My panel and switches are all good, figured replacing the vac parts would be cheaper but I guess now. Good info.... thanks. The o-rings are made with a pattern for vacuum channeling. It's...

Hey guys, since I bought my 85 GP the air would only come out of the floor and defrost vents. I vacuum tested the entire HVAC controller system. All the actuators are perfect. Hoses are good. I chased the vac leak down to the two vacuum controller or vacuum switches in the HVAC panel...

So sounds like I'll be teeing off from the switch for the gauge sender. Thanks for that link man!

Thank you!!! ^^^^^^ Yes I'm doing factory gauge swap from idiot lights. And I have the OEM tach cluster ready to swap in in place of the clock dash. So from what I've learned today I take the tan wire from the oil switch connector (1 of the 4) and extend it down to above the oil filter and...

Thanks for the help guys. I looked at the schematics this evening at home and it makes sense. However, i checked tonight.... my car has 2 wires that provide the 12V, not one. I have 4 total wires that plug into 2 spades. I'm guessing the 20A circuit is split? Who knows.

Bonnewagon- Thank you for the drawing. Very helpful. Where is jared's link? It looks like this is the wiring for the "optional gauges". So there should be a page for the idiot lights. With both of those I would be good to go. Thank you all for the help.

Good info guys!! Thank you. My question is, how did cars come from the factory that had the oil press gauge? Wonder what the "OEM" setup was. Yes I have the electric choke. But being FL, not sure i would ever need that.

As title states, my '85 GP came from the factory with idiot lights. I am converting to the OEM option Rally gauges that actually show oil pressure and water temp. The water temp sender looks straight forward. It's on the driver side, forward part of the cylinder head. 1 green wire. Just...

A warm welcome from a Tampa GP owner.

GP hands down. Very sculpted and defined front end and tail end. Dash layout is miles better than the other G bodies.

update. pulled the tstat out. Flushed the crap out of the system with a hose. Tstat needed to come out or I was never going to get this thing cleaned out. Ran the engine with the hose in the filler neck, radiator petcock pulled. That really flushed it out. Also disconnected the heater...

I did put a new Tstat in it, went with OEM temp of 190*F IIRC. Water pump is relatively new and not leaking so I left it. I'll pull the block plugs and see if I can get it to drain that way.... Yeah, it's looking like just a neglected cooling system more than anything. OH, and the heater...