To replace the heater fan on a 1999 Chevy Tracker, first disconnect the negative battery cable to ensure safety. Remove the passenger side dashboard panel to access the heater assembly. Disconnect the electrical connector from the heater fan, then unbolt the fan motor from its housing. Replace the old fan with the new one, reattach the bolts and connector, and reassemble the dashboard panel before reconnecting the battery.
When you have the heater on, does it just blow any air at all? or no air?
Pull the engine.
take your vehicle to a licensed mechanic
1990 was the first year of the Geo Tracker. 1999 was the first year of the Chevrolet Tracker. So the answer to your question is 1999.
buy a Chilton manual and it will tell you most of what you need to know.
195/75/R15
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Depends where you live but I would guesstimate between $400 and $800.
1999 2.4