low radiator fluid or a possible bad thermostat.
No it does not.
R134a
The 1997 Chevrolet Suburban 2500 has a 4L80-E 4-speed automatic transmission. It was are only used in Chevrolet and GMC vehicles.
On the driver's side next to the distributor; hard to get to.
Located inside fuel tank
take off brakes pull roter off.
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.
Depends on the year. Here is a site that has pictures of an EGR valve for a 1997 - 1999 Suburban: http://www.racepages.com/products/?D=gmc+suburban+egr+valve&Nty=1&Ntx=mode+matchallpartial&Ntk=Main&N=4294950670+4294963366+9926&Dx=mode+matchallpartial&Ntt=gmc+suburban+egr+valve Go to www.racepages.com and search for an EGR valve for your year rig.