Question about 1999 GMC Suburban

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How often do you change the differental flouid front and back on

On 1999 gmc subarban

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In most of my expertise the 60,000 mile service is when differental fluids are to be changed. also check your manual if you have a posi rearend make sure you put the additive to it. let me know this helps

Posted on Jan 14, 2009


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I hear a bang when i take my foot off gas coming to atop and also hear a bang when i give it gas this happens like 75%of the time

problem most likely not in the diff but in the diff mounting and suspension points
a noise on acceleration or deceleration indicates that the diff housing is free to react to the load being applied and that is mounting bushes , broken mounting plates or other suspension problems
consider this to see if it fits
when you accelerate the reaction of the diff is to roll upwards as the wheels have traction but when under brakes ( deceleration ) the diff rolls forward
hence the bangs in both directions
suggest that you change mechanics and take it to a specialist shop that deals in your make of vehicle for a proper under body inspection of mounts , rubbers, pins and chassis mounting points
another issue her and that si the engine reacts the same way so check engine mounts and reaction rod bushes

Oct 02, 2016 | 2003 GMC Yukon Denali

1 Answer

I have subarban 1999 not start . scaninge dtc p1626 antitheft

Probably bad key or ignition tumbler/switch. don-ohio

Sep 13, 2011 | 1999 Chevrolet Suburban

1 Answer

What kind of fluid do i put in the front differental?

Differential, Front ..Spec...GL-5
SAE 80W-90 or
SAE 80W-90 Synthetic Gear Lube

Feb 05, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

What is involved in a 4 wheel drive service?

changing oil in front differental transfercase and rear differental most servive shops combine all 3 and call it a 4 wheel drive service which is good cause it saves you some money

Jan 10, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

How do i find front axle ratio

there is a tag on the differental that gives the ratio, u can also ask the dealer to run the build sheet on the GM factory computer terminal they have

Oct 18, 2010 | 2001 GMC Jimmy

2 Answers

Can i drive my 1992 gmc jimmy without the front differentical? And if not where can i buy one for cheap?

Yes you can drive without front differential. Easy way to do so is just dissconnect your front cv axles. Just make sure you dont throw that car into 4 wheel drive.

Mar 10, 2010 | 1992 GMC Jimmy

1 Answer

When need to use the 4wd, my truck to the left or right the front drivers wheel makes a popping sound like if it were to have cv axles. It's a 2003 gmc yukon 4x4 it just started happening

You could have a CV joint that has gone bad, or the engagment forks to the front differental is partialy engaged which is causing the popping noise when you go around a corner. Good luck and keep me posted.

Feb 06, 2010 | 2003 GMC Yukon

1 Answer

I need to change my oil pan gasket on my 4.3 1999

motor mounts some front end parts if 4x4 front drive shaft oil filter and misc hoses not an easy job in driveway

Sep 29, 2009 | 1999 GMC Jimmy

1 Answer

My gauges on my 1999 Plymouth Voyager work on and off. A mechanic changing my oil thought it could be the connector to my instrument cluster panel board. Suggestions?

These vans have problems with the circuit board on the back of the cluster. That is most likely the problem. They are pricey and there is differentes depending on the options on your van. So i would recommend a used one.

Mar 21, 2009 | 1999 Plymouth Voyager

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