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Maintenance Suggestions for 96 Suburban 2500

2207 Views 4 Replies 5 Participants Last post by  kcb37
Hello Group,

I just bought a 96 Suburban 2500 4x4 with 7.4L with 138K miles and was making a list of preventive maintenance and wanted some input from the experienced ones. It will be a part time tow vehicle for my 31' travel trailer. The a/c blows warm so I am hoping it just needs freon but I have noticed that the electric fan in front doesn't come on when I turn on the a/c and neither the a/c compressor. It has a slight leak under the front differential so besides getting that fixed I wanted to get the front and rear diff fluid changed.

Oil change
Trans flush
Brake fluid flush
Engine coolant flush
Possible power steering fluid flush (if recommended here) since it also provides pressure for my brake system
spark plugs, cap/rotor possibly wires and PCV valve
Sea foam in tank possible some in oil pan and in PCV valve hose (not sure)
Cleaning of the TB and IAC with carb cleaner
Mass Air cleaned with the spray on and dry mass air cleaner (not carb cleaner)
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Basic run down.
Do not flush anything period. More then likely your trans will not slip if flushed, it will slip for the first day and quit completely if it lasts that long.
Just drop the pan change the filter and refill.
Drain and refill the coolant. Do so about once every 2 years.
Use a Turkey baster to suck the dirty brake fluid out of the master cly, refill. Do so until you get clear fluid out. Then bleed the brakes.
Power steering, pull a line off the gear box, truck off turn the wheel. This will push fluid out of the gear box getting more. (with hydroboost you will not get it all) Then fill the pump, with the tires off the ground truck off, turn the wheel, add fluid as needed. This should get most of the air out.
Diffs also change the fluid.
Check the plugs, wires, distributor cap and rotor.
Check the battery, cables, starter and alt. Make sure all cables are tight, mounting is tight, etc..
Check the fan belt.
Check the brakes. The caliper bolts need taken out, cleaned and a light coat of only brake grease put on them.
The battery should also be charge about once a month with a desulfating charger.
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