The 1970 model year was the last year of the square styling, front drum brakes, and I-beam front axle. The 250 cu in (4.1 L) inline-6 engine producing 155 hp (116 kW; 157 PS) at 4200 rpm was now standard. In addition to the 307 cu in (5.0 L) 2-barrel V8, a 350 cu in (5.7 L) 4-barrel (255 HP at 4600 rpm, 355 lbs-ft torque at 3000 rpm) V8 engine may have been available as an option for the first time in 1970; it is referenced in the owner's manual, but not mentioned in the dealer brochures.[citation needed] The 3-speed automatic and manual 4-speed column shift continued as transmission options.
In line with the C/K pickup trucks, a 4.3 L V6 replaced the long-running 4.1 L inline-6 as the standard engine for 1985. For 1987, the four-barrel carburetor for the V6 was replaced by throttle-body fuel injection (TBI), with the 5.0 L and 5.7 L V8s following suit. Alongside three-speed and four-speed manual transmissions, the G-series vans were offered with three-speed and four-speed automatic transmissions.[10]
98 Chevy G20 Van Repair Manual
For 1988, a fuel-injected 7.4 L V8 was introduced as an option,[11] becoming the first big-block V8 offered for the model line. For 1990, manual transmissions were discontinued and the four-speed automatic became standard equipment on nearly all body configurations;[3] for 1992, the 4L60E and 4L80E four-speed automatics replaced the three-speed automatics entirely.
While retaining the dashboard from 1978, a new tilt steering column was introduced (sourcing the steering wheel from Chevrolet mid-size sedans), moving the manual transmission shifter from the steering column to the floor.
You need a basic set of metric sockets, screwdrivers, a drill and most important, a subscription to an online service manual. That way, you can download instructions and diagrams that are specific to your car. Use our instructions as a rough guide, and refer to your manual for specifics on auto window repair.
Start the auto window repair by removing all the trim panel fasteners to access the switch for testing. Remove the trim panel and peel off the vapor barrier. A trim panel removal tool is inexpensive and saves you a lot of time.
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