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change the (pvc) valve
Yes in the '79 to '85 toronado's. You will need an olds 350 engine such as the ones put in the '79 toronado's.
how do you replace a heater core in a 91 Oldsmobile 98
This depends 100% on what engine it is.
Heater core is inside dash board by firewall.
$2,995.
you need to replace your heater core.
3,853 lbs
To replace most heater cores you have to remove the dash on the passenger side.
It probably has a bad heater core
When replaceing the toronado engine, The intake and carb must come from a toronado or Riviera because it is lower. The 78 came with a 403. A 307 or 455 Olds engine will work also as long as you put the low profile intake on