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89 History

Type 1 89 Firebird Owners Manual Cover Pic (19K)

Type 2 89 Firebird Owners Manual Cover Pic (12K)

89 Service Manual cover pic (16K)

89 TTA Ad Card (20K)

The Easiest way to tell the difference between an 88 & 89 is the Back Seat Shoulder harness'.  88 did not have them whereas the 89 Did.   Furthermore, In 89 Pontiac dropped the performance sound option from the Firebird line only 5 were produced (1 Formula, 1 T/A & 3 GTA) with he UQ7.

The Formula received new high performance P245/50ZR16 tires as standard, over the old P245/50R16 Tires.

The Engine received only a minor upgrade to where the Cold Start injector was eliminated from the driver side of the intake.  The Multec fuel injectors were revised for better fuel economy.  The J65 self-adjusting rear disc brakes were completely revised with new larger caliper and rotor design.  Pass key anti-theft protection (aka VATS Vehicle Anti Theft System) previously only standard on the GTA, is now standard on all F-body cars, Camaro included.  And a new AM/FM compact disc player option.

  September of 1988, the 1989 Pontiac Media Kit sent to dealers stated that for 1989 the Formula 350 would have an additional 10 HP over the Trans Am and GTA's 225 bhp option.  The Formula was to be the only car to use the "Dual Catalytic converter low back pressure exhaust system.  In numbers, the added power should be good for a .2 to .3 second reduction in 0-60 mph times."   The N10 Dual cat option became available on the Trans Am and GTA later in the production year.  89 Pontiac Firebird Media Kit  (1.7MB)

The 89 Formula Engine options are as follows
5.0L TBI Engine (L03),
5.0L TPI Engine (LB9) - Optional
5.7L TPI Engine (L98/B2L) - Optional
 All 1989 Formulas got the D81 Aero Spoiler, The Dome hood, Formula Graphics, PE0 16" "Formula" Wheels with QLC P245/50ZR16 Tires & WS6 Suspension,  The Formula was standard with the Lower accent stripe, and optional with WX1 Two Tone Delete.  Only the Medium Gray Metallic was manditory with the Lower Silver Accent stripe. 


Factoid: 1989 was the first year for the Firebird to have A01 Tinted glass standard, the RPO was no longer used.  From 1982-1988 Clear Glass was standard with non Air Conditionined (C41) Cars, Starting in 1989, All Firebirds came with A01 (Green tinted) Glass. 
Factoid: 1989 was the first year where the CD4 Veriable Pulse wipers was standard, and no longer an option.


In 1989 there seems to be an unusually high production of T-top cars which were equipped with the L98 (350ci) engine.  For the US, only 1989 and the Firebird line was the LAlthough 350 T-tops cars appear to be available in 87 it is a more common combination in 89.   It should be noted that C&C (Cars and concepts) was a company that did Hard top to T-top conversions for F-bodies, for owners who had a hard top and wanted a T-top car.   The C&C T-tops are not interchangeable with Factory tops, and in some cases even have a pop-up option much like a sunroof. 


Factoid - 1989 was the first year that the AQ9 was not available on the Trans Am without Y84 GTA package.  AQ9 (Ultima seats for 1989-1992 was a GTA ONLY item) with the exception of the 1991 & 1992 Trans Am Convertibles.


Option Group 1SA included: A/C, Body Side Molding & Lamp Group, power windows & power Locks

Option Group 1SB included 1SA &: 4 way Seat Adjuster, Cruise, Power hatch release, power remote Mirrors, rearview mirror with reading lamp.




Other options:

NB2 California Requirements

N10 Dual catalytic converters.

JG1 Aluminum Driveshaft

D42  Cargo Screen

C49  Rear window Defog

LB9  TPI 5.0 Engine

BL2  TPI  5.7 Engine

CC1 T-tops

VK3  License Plate Bracket

U75  power Antenna

AU3  Power Door Locks (required power windows)

A31  Power Windows (Required power door Locks)

UM6  Radio seek/scan auto reverse cassette

UX1  auto reverse cassette with Graphic EQ

U1A CD Player & Graphic EQ

MXO Automatic Transmission