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Step 1: Disconnect heater hoses from under the hood Step 2: Remove the (6) 9/32" screws securing the heater box cover to the bottom of the heater box. Note: (2) of them are hidden so make sure you get them all. Step 3: Remove the heater box cover. Step 4: Locate the (1) 9/32" screw that holds the heater core to the housing. Step 5: Gently pull the heater core from the housing and remove. Installation is the reverse of disassembly.
What else can I help you with?
How do you change a fly wheel on a 1990 Chevy silverado 2500?
The transmission must be removed to change the flywheel.
Why no heat on 1990 silverado heater core I've changed control and thermostat.?
Have you flushed the heater core?
Where is the fuel pump on a 1990 Chevy Silverado?
In the fuel tank.
What is the oil capacity for a 1990 Chevy silverado 1500?
5 qts
What size fuel tank is on a 1990 Chevy Silverado?
34 gal.
What is the spark plug gap on a 1990 Chevy Silverado?
spell check your answer
Does a 1990 Chevy silverado 5.7L have a fuel injector?
it has throttle boddy
Where is starter solenoid on a 1990 Chevy Silverado?
It is mounted on the top of the starter.
What years of body styles fits a 1990 Chevy silverado 1500 truck?
1990 through 1998
What is the difference between a 1990 Chevy silverado and a 1994 Chevy Cheyenne?
most 88-98 Chevy pickups are basically the same. the only difference between yhe cheyenne and silverado is the trim.
Whats the spark plug gapping on a 1990 Chevy silverado 1500?
.035
Will the motor out of a 1990 Chevy Silverado fit in a 1991chevy caprice classic?
yes
