I have a 1990 Buick wagon with smoke coming in the vents after the car
heats up. I suppose it is the heater core. I don't want to spend big
bucks getting it fixed at a garage.
Which is better -- adding leak repair or connecting inflow and outflow
hoses to bypass core?
If I decide to fix this does anyone know how big a job it is on this
model? Is it hard to get to and replace?