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  1. gsgns4me

    Anyone recognize this 200-4R

    For what it's worth, I found this post (post #4).......200-4r Ht-f? I don't know if it is accurate or not.
  2. gsgns4me

    Interior dash area screws, two types.

    I can't give a specific answer to your question, but generally GM installed the top 2 screws in your picture (more course threaded) directly into plastic. The two bottom screws in the picture (more fine threaded) were screwed into a receiver of varying types, usually a metal clip or plastic tab.
  3. gsgns4me

    2004R Diagnostic Chart

    Here is a decent place to start.......http://onefootinthegrave.net/filez!/warez!/trservice/enhcdpdf/sec07.pdf
  4. gsgns4me

    200-4r valve body parts question...

    Just for reference, here is a factory wiring diagram for 1987 model 200-4R's..............
  5. gsgns4me

    need HVAC diagram

    Starts at page 4 of the .pdf http://onefootinthegrave.net/filez!/warez!/trservice/enhcdpdf/sec08-4.pdf
  6. gsgns4me

    Power Master Wiring

    Page 18-22 of this .pdf...............http://onefootinthegrave.net/filez!/warez!/trservice/enhcdpdf/sec08-3.pdf Most of the service manual on that web-site............Electronically Linked and Searchable Manual
  7. gsgns4me

    200-4R Connector

    Here's some wiring diagrams that might help. I was thinking all the case connectors were the same, though. Yours should plug up even with the blank in the case harness.
  8. gsgns4me

    A/C Question, R134a Conversion

    So is anti-freeze. Just sayin'......
  9. gsgns4me

    Name that TV cable

    I believe only 1 of the 2 cables pictured will fit a 200-4R case. The other cable is for a 700-R4 case.
  10. gsgns4me

    TCC lockup wiring

    No suggestions, but here is the electrical schematic. https://www.vortexbuicks-etc.com/TCC.jpg
  11. gsgns4me

    86-87 AC Evaporator wanted

    If nothing turns up, you might try this evaporator from Original Air...... 1984-1987 Grand National, GNX, Turbo Regal Evaporator
  12. gsgns4me

    Morel lifters are loud

    From the way you have your picture, I believe if you put your positive cable on the lug you have pointed out, your starter is going to run all the time. To me, from your picture, put the positive wire and fusible links on the longer top stud. Any other (smaller) wire (ignition) goes on the...
  13. gsgns4me

    part number for for OEM ac evaporator

    You might try here..... 1984-87 Buick Grand National / GNX & T-Type Regal Evaporator Coil
  14. gsgns4me

    86/87 Performance parts for sale

    Thanks, Kyle. Paypal is on the way.
  15. gsgns4me

    86/87 Performance parts for sale

    Inline & interested in the injectors, 5.7 chip, & heated O2 sensor if they are still available. Will PM later tonight after I get home from work. Thanks.
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