94 Bravada..

Hey all, I am the proud new owner of a 1994 Olds. Bravada AWD. Not a Chevy but still a GM. It was purchased from an old(ish) lady, who is the original owner. 156,000 miles. Well maintained, pristine condition. Motor is 4.3 Vortec, has digital dash as well as every other option.

My question is: aside from regular maintinance, how can I ensure that my truck will last a long time? Powertrain, body, ect. I drive it at least 100 miles, 6 days a week.

I plan on having the oil, transmission, transfer case, brake, power steering and differential fluids changed, as well as a coolant flush and fill and chassis lubrication. I was going to change the oil myself, but I noticed that the oil filter was on the Right hand side of the engine compartment, next the air box. At least, I belive this is the filter, and I wasnt sure if there was anything special that needed to be done to drain these lines.

Does this truck have an oil cooler? (Can provide pics)Was it stock? Would my truck benifit from an aftermarket transmission cooler? Did it come stock with a transmission cooler?

Any and all input is appreciated. TIA everyone.

Carl

Reply to
Carl Saiyed
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Nothing special for oil change. The amount of oil left in the lines is negligable. Yes, that's the oil filter, right in front of the ABS module.

Oil cooler is there, so is a tranny cooler, but they're VERY basic units. Both are part of the radiator, and if you plan on doing much towing go ahead and put an aftermarket in and plumb it as a replacement for the OE unit.

Keep it waxed, keep up with the fluid changes and the truck should last a while. The engine is the SBC short 2 cylinders, that alone should speak to its longevity.

Reply to
Mike Levy

Thanks Mike. I've heard good things about the 4.3 Vortec. I forgot to add that I am capable of changing all the fluids myself, however I am unfamiliar with all of the "new electronic stuff" on this truck. The last car I seriously worked on was my '76 Dodge Aspen.

I read that the motor must be jacked up when removing the transmission pan, to avoid breaking the 2-3 shift selonoid? Is this true? If this is, then I am a little afraid of taking the truck anywhere but the dealer for the tranny service, since most places may not know that. If it isn't true, is it worth it for the "Aamco power flush"? Apparantly they flush your trans with new fluid, the replace all 12 quarts (they drain the T.C?). If the flush isn't worth it, and You don't have to fuss with raising the motor, is there anything special I should know about changing my own trans fluid?

How do I change transfer case fluid?

Anything else I should know?

Thanks again.

Carl

Reply to
Carl Saiyed

I guess jacking the engine up would be one way. The problem lies in clearance for the pan between the Y-pipe for the exhaust and the rear tranny mount. One thing you can do is remove the crossmember that tranny mount is on, with the tail of the tranny supported, and you can get the pan out. The flushes replace all the fluid, that's fine and dandy but you still have a dirty filter to contend with, and the pan has to come out to replace it.

T-case fluid should be an easy drain and fill, there are 2 plugs on the back of the case, pull the top, then the bottom, re-install the bottom and fill it up, unless you want to pour some clean fluid through it to flush before re-installing the bottom plug.

Don't be afraid to ask any other questions, I recently traded up from a 94 Jimmy (your truck without AWD and leather) to a 2000 S-10 ZR2. My old truck had that digital dash, if it hasn't been fixed yet, look forward to it, though it's not terribly expensive...

Reply to
Mike Levy

Thanks for the help, and I do have some more questions.

What weight oil? Will any additives help ("Engine restorer lubricant"[silver can, 6cyl formula]) - This brought the oil pressure up in my Celica and stopped the slight oil burning problem I was having. I am guessing I shoud be using a high-detergent oil (Castrol OK?). Should I put a little ATF in it for a day or so to clean out the motor? Can I flush the trans by myself?

Thanks again for all the help.

Carl

Reply to
Carl Saiyed

Reply to
Mike Levy

I've NEVER heard of using transmission fluid to flush. I use GUNK to flush my engine... I run DINO....

~KJ~

lubricant"[silver

Reply to
KJ

It used to be "common practice" for old time mechanics to pour a quart of auto tranny fluid in the crankcase and run the engine

10-15 minutes before an oil change. The tranny fluid was supposed to thin out the sludge in the pan and clean out the oil galleries to get the gunk flowing and out the drain hole. Don't know if it worked, I never tried it. Sounds like a good way to spin a main or rod bearing to me. JR
Reply to
JR

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