GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 5 of 5
  1. #1

    Default Maintenance Suggestions for 96 Suburban 2500

    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)
    99 Suburban 2500 4x4
    06 Explorer Ltd 4x4

  2. #2


    Don't use carb cleaner to clean the throttlebody. Use a throttlebody cleaner. The t/body has a coating on it that carb cleaner can damage/remove. I like CRC , 3M or Seafoam to clean the throttlebody. Seafoam has a new spray can with a tube to clean he intake manifold. Its shown on the Seafoam website. Also don't forget the fuel filter. Most people on this site including myself use A/C Delco spark plugs, Gm's just seem to run better with the A/C Delco's.

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.

  3. #3
    Jr. Engineer racekid91's Avatar
    Join Date
    Feb 2011
    Green Bay, Wisconsin, United States


    Not totally sure if I'd recommend flushing the transmission. Possible to cause more problems if you flush it. For example, if you have metal shavings, you'll throw them around instead of them sitting in the transmission pan. Just a thought, something I've learned from some of the older, more experienced tech's at work.

    Also, a good idea would be drain and fill your transfer case, and differentials. Rear diff, I'd replace the cover gasket. Front just drain and fill

    1995 Chevy Tahoe

  4. #4


    x2 on what racekid said. Although if your talking about dropping the pan and changing the filter it probably wont be a problem. If your totaly flushing the entire transmisson you may notice problems and it can also cause your transmission to shift hard and slip a little. This is because the abrasive material that wears off the clutch packs helps to work as a friction material and without it in the fluid your transmission may slip for awhile. If you do flush it you should put an aditive in it to help it stop slipping. I know that lucas makes a decent one and I think Bars also does. I know the lucas one works pretty decent because I have people come in to work a lot explaning how they flushed there system and then it slipped. I recomend they use the lucas stuff and they said that it has helped a lot.

    Also check your wheel bearings, balls joints, tie-rod ends, shock absorbers, ect...
    1995 C1500 4.3L 2WD. JET TBI Spacer, JET stage 1 chip, 10mm Taylor custom wires, Pulstar Iridium Pulse Plugs.
    260k miles and still going strong...

  5. #5


    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.

Similar Threads

  1. General Maintenance 2003 Suburban
    By kneep1 in forum General Chevy & GM Tech Questions
    Replies: 3
    Last: 08-20-2010, 04:24 PM
  2. Need after market radiator suggestions 89 Suburban
    By Big6ft6 in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 7
    Last: 04-03-2009, 01:24 PM
  3. looking for 87 suburban brake suggestions
    By akagun in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 4
    Last: 02-04-2009, 09:44 PM
  4. '08 Suburban - oil change...and other maintenance
    By Allen in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 2
    Last: 01-05-2009, 01:26 PM
  5. Preventative maintenance 2000 Suburban
    By BurtsBurb in forum GM Powertrain
    Replies: 7
    Last: 11-12-2008, 11:22 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts