Search results

Hi, I'm assembling my engine after rebuild and I'm at the turbo. I have a stock turbo boost controller but, when I disassembled the engine, the boost controller was plugged in but, not vac lines were connected? A brass tube in it's place? So, I attached a short video showing the current setup...

Hi, I pulled the motor about 6 months ago for rebuild and as many pictures that I took, there's still some things here and there that I missed. Anybody know what this red connector is? It comes off the harness on the driver side that runs along the valve cover.

Hi, I just got done installing a rebuilt engine. Prior to the rebuild, the PCV was in the intake and connected to nothing, oil everywhere....The PCV hose coming off the vacuum block had a bolt in the end of it. It was like this for over 10 years. Since it's now rebuilt, I don't want that BS...

I had my motor out for rebuild for the past 5 months and i have this one pesky wire I can't figure? It's coming out firewall behind/lower of the brake booster. It looks to be purple or maybe red? In pictures below:

Hi, I'm working on my engine bay harness and I found a problem with a wire that goes to the starter. Its 2 wires =, I'm guessing 10 gauge that go into a fusible link and 1 wire that appears to be 12 gauge or so. I believe this wire is part of the fan system? not sure.....anyways, where could I...

Hi, I'm in the process of installing a rebuilt motor in my 86 GN, I'm at the point to install engine but, first thing i'm doing is straightening out the harness for the engine bay. I pulled the motor a few months ago and my memory is not what it used to be ...lol. I have 3 connectors I'm...

Hi, anyone ever heard of or tried these cheap headers? https://xs-power.com/buick-turbo-gn-gnx-headers-1.htm

Hi, I blew a headgasket on a 86 GN, I removed the engine to fix head gasket and regasket the entire motor. After pulling the oil pan, I found this 3/4" 4 sided piece metal. I have no idea what it is, I doubt it's part of a ring...it's to straight and I don't think its a wrist pin retaining clip...

Hi, I have a 86 GN and cylinders 1 & 3 aren't firing. Confirmed I have spark, fuel injectors acting funky on these 2 cylinders. Havn't dug further with injectors since I discovered cylinders 1 & 3 have 30psi confirmed with compression tester. This then made me send my inspection camera into...

Hi, I'm looking for a bigger then stock cat back / test pipe back exhaust? I'm in Conn.

Hi, I installed a used 87 200R4 into a 86 GN. The used trans is a AC Delco replacement trans out of a 22,000 mile GN that was wrecked. I installed the trans about a month ago and it drove great, my father wanted the trans to shift a little harder so he messed with the TV cable while I was not...

Hi, I just installed a used low mileage 200R4 trans into a 86 GN, I'm having a problem with the TV cable, the cable keeps slipping off the tiny rod that hooks into the TV cable at the transmission under the car. The TV cable is a Highway Stars cable that I bought in 2016 and seems to be in...

Hi, I have a 86 GN and today my father was driving it and he stated the car was running weird and the check engine light cam on. He got home and the car would not start but, 20 minutes later it started but, not running right, a little rough but, drivable. I connected the OBD scanner like I have...

I am looking for a new GN picture of the cars sitting on the dealership lot back in 86 or 87? I seen many pictures like this on goggle images a hundred times and now that I need one, they can't be found. Does anyone know where to find one of these pics??

Hi, My passenger window stopped working, the widow will go down but, will not go up. Ok, checked power to the switch and power going up and down, everything checks out ok. So, I bought a new power window motor and plugged it in before installing it into the door, the motor will turn on/spin...

Hi, I have a 86 GN and am looking for a technical manual for this car. What is the best tech/repair manual for this car and where could I buy it? I'm starting to have small pesky problems occur and it would be great to have something for technical reference. Any ideas?

Hi, I need some help with identifying a relay. I believe this relay works with the electric engine cooling fan. When I turn on the A/C, the fan kicks on and no issues but, if I'm driving without the A/C on; sometimes the car runs hotter then normal and I found that the fan is not turning on...

Hi, my alky supplier went out of business and I'm stuck with no source of alcohol but, I have been using a product called Boost Juice, which is a 50/50 mix alcohol & water....I'm not sure if this is good, car doesn't run as good with this stuff. I did some research today and found out about the...