low radiator fluid or a possible bad thermostat.
No it does not.
R134a
On the driver's side next to the distributor; hard to get to.
The 1997 Chevrolet Suburban 2500 has a 4L80-E 4-speed automatic transmission. It was are only used in Chevrolet and GMC vehicles.
take off brakes pull roter off.
Located inside fuel tank
Fuel filter is mounted on the frame near the rear axle.
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Check the firing order, you may have some crossed wires.
this might help you: http://www.justanswer.com/questions/194b5-1987-gmc-suburban-4x4
Based on cars.com the 7.4 liter engine has 295 horses.
The Yukon is a GMC and the Suburban is a Chevrolet.