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I’ve had mine since the early 90s, it had been painted already and the paint has only had a few corrections since. Soon it will be time for a refresh and I have a question. The lower portion of the sides of the car has a more textured finish below the lower crease than is present on the rest...

Chasing this condition, can't seem to figure it out. There is a stumble that lasts only a split second, every 8-9 seconds (like clockwork) only when the engine is not under load. If the car is stationary and in gear, it's perfect. Under 99% of the driving conditions, it's perfect. Runs like a...

The car: 1986 GN Casper's hotwire kit, new fuel pump ( old one too weak), new hanger (old and sender was fubar) , new fuel tank (old one leaked) , new relay (thought that would have cured the issue). There is an intermittant condition where the fuel pump will not activate on start up. As a...

I get a random no start condition. There doesn't seem to be any repeatable pattern. Cold or hot, the starter will engage, but no fuel pump prime. I can put in the key, turn to run and sometimes the pump activates and sometimes it won't. I'm not talking about once the rail is primed, this can...

This pic was posted regarding the PPG Pace cars, check out what is #2 in line behind the Vette. Anyone have any info on the car? What ever happened to it?

the high beam has condensation on the inside of the headlight assembly. If these are sealed beams, how the heck could that happen? It's been light that for a year or more, I just haven't gotten around to dealing with it. Look, I already know it's easy..... just replace the headlight. I'm...

At least in Florida it does. The Beldon plug wires (which are actually pretty good) I purchased years back, come with a lifetime warranty. Monday of this last week I called them for a replacement set as mine crapped out last weekend, they tell me the the closest set is in Charlotte and they...

The battery wasn't charging yesterday, thought it was a bad alternator but turns out that the alternator charge wire came apart. Upon closer examination, the wire failed about a foot and a half down from the alternator as it made a turn to go under the engine. Upon even closer examination, it...

Evidently the Chinese are cloning walbro pumps. The fakes are difficlut to spot, the difference is that the chinese version is using plastic gears instead of metal. Everyone should be made aware! How to spot a fake walbro. When you pull the endcap of the pump where the filter goes...

I ended up having to replace the hanger, pump and sender last year. Since I had an analog gauge cluster, I made sure I got the correct sending unit. The gas gauge worked pretty well, but it wasn't 100% accurate. Empty as far as the tank was concerned, read just below 1/4 of a tank on the...

Pontenza came apart, no sheetmetal damage but it sure wiped the frame clean of paint.

Anyone use these inserts? They are supposed to cut down on some of the noise but not affect flow. Seems to me that sticking one at the muffler outlet mike cut a little bit of the drone. Dynatech Vortex Insert Cones - JEGS

Used to be you could search "Buick Grand National" and you could find some decent parts here and there. Now these butthead generic venders flood your search with 15,000 door handles, ball joints, wiper blades and other associated crap that makes it such a PITA to even search. It's gone to...

I'm chasing a whistle and can't seem to find the source. It only manifests itself in 2nd, 3rd or 4th gear under light load. As soon as the turbo starts to spool into boost, the only whistle is the turbo. I've traced all the vacuum hoses, intake gaskets, I still can't find it there. I do...

The arrow in the attached photo below shows the switch under the door jamb lock striker, is this for the factory alarm? Mine broke today, anyone know a part number and/or where one can be purchased?

This street motor has an ATR 212º billet roller cam, unported 8445s 255 lhp pump and hotwire, headers, 3" downpipe, duttweiler neck stock IC, 3" KB single shot. stock ECM, stock rear gear. With the stock turbo at 14 psi, my 02s are at 775-780 mv in 3rd gear with the converter unlocked. The...

The a/c has been redone, new compressor, lines, dryer, evaporator and filled with R-12. When in use, the cold side of all the lines are all now covered with heavy beads of water, not just a fine mist. What would cause this much condensation?

I had been wanting leather seats to replace the standard GN, wouldn't you know it ....... Jax has disappeared. Since that happened, I've been consulting with another company who can take on the project of creating a proper pattern along with embroidery for our illustrious turbo buicks...

I had great luck with these on my v8s, anyone use these on our turbo Buicks? Percy's High Performance - Online Store I need another passenger side gasket and want to switch over to something more durable. Thanks..........

The Gn's air blows cold, the problem is the air diverter. Start it up in the morning and the air is not flowing thought the vents. After a minute or so, the diverter door literally slams into position. You can hear some sort of seal sticking as if there was a sticky residue on the flap seal...