100,000 Mile Maintenance

Bogle45 · March 4, 2008

My 2000 Silverado is about to roll over to 100,000 miles.

I actually just had to replace my fuel pump..... $360!! Plan on changing the fuel filter soon as well.

I have replaced the fuel filter and spark plugs at about 75,000.

I now plan on replacing the coil packs and o2 sensors. I usually like to go with OEM brands but I thought I would see what everyone else uses... any good or bad brands out there?

I am also planning on flushing the transmission and replacing the filter and putting new lubricant in the transfer case and rear differential.

I think this may get pricey when its all said and done.

What else should I do?

Any ideas/recommendations/opinions are greatly appreciated.

Mikeee · March 4, 2008

For the O2 Sensors use AcDelco/GM only.

On the fuel filter write the mileage and date on the can AFTER installation.

If you really want to flush the trans, the better machines do a 2 second reverse flow.

Install a Goodyear Gatorback s-belt.

My 2¢

vranasaurus · March 4, 2008

Might I ask why you are replacing the coil packs?

Unless it is having soe issues with the ignition system I don't know why you would do this. Unless there is something I don't know replacing the coil packs is not part of the 100,000 mile maintenance.

The OEM ones range from $30 to $65 depending on which ones you get. Your looking at between $240 and $520 to replace things that may not be bad.

redvett · March 4, 2008

I have 3 service & 1 personal truck all are the same 2000.01,03 & 04 the olsdest has over 245000miles and still running strong. Coils are OEM original. If its not broke why fix it.

Bogle45 · March 5, 2008

Well, they may not need to be changed. I was just assuming they needed to be.

The engine does have a little stumble in it while idling. I was thinking changing the coil packs would help.

vranasaurus · March 5, 2008

Well, they may not need to be changed. I was just assuming they needed to be.
The engine does have a little stumble in it while idling. I was thinking changing the coil packs would help.

You should probably test the coil packs before you spend a bunch of money to replace them.

Bogle45 · March 5, 2008

Well, they may not need to be changed. I was just assuming they needed to be.
The engine does have a little stumble in it while idling. I was thinking changing the coil packs would help.

You should probably test the coil packs before you spend a bunch of money to replace them.

I like that idea, how do I go about doing that?

C & A s Dad · March 5, 2008

Brad,

Not sure where you are located, but if you have a CARQUEST Store in your market, we use 3 OE suppliers, Denso, NTK and Bosch for our O2 sensors. Our cataloging will list the OE brand. I think your 2000 model had NTK O2 Sensors.

vranasaurus · March 5, 2008

Well, they may not need to be changed. I was just assuming they needed to be.
The engine does have a little stumble in it while idling. I was thinking changing the coil packs would help.

You should probably test the coil packs before you spend a bunch of money to replace them.

I like that idea, how do I go about doing that?

Just google "coil Tester" and you see a range of products that will accomplish the job.

ws6_guy · March 6, 2008

Sounds ok, but has your transmission been flushed before? Often people start having problems with their trannys after flushing for the first time ever when the truck has 100k+ on it

Mikeee · March 6, 2008

Sounds ok, but has your transmission been flushed before? Often people start having problems with their trannys after flushing for the first time ever when the truck has 100k+ on it

It's like kicking a sleeping dog.

Bogle45 · March 7, 2008

Sounds ok, but has your transmission been flushed before? Often people start having problems with their trannys after flushing for the first time ever when the truck has 100k+ on it

So I shouldn't have it flushed and change the filter?

Mikeee · March 7, 2008

Sounds ok, but has your transmission been flushed before? Often people start having problems with their trannys after flushing for the first time ever when the truck has 100k+ on it

So I shouldn't have it flushed and change the filter?

Do you plan on keeping the truck awhile?

If so, then DO IT !!!

Just be sure to use a reputable transmission shop.

Not a brake shop that does transmissions.

Not a muffler shop that does transmissions.

A transmission shop that does transmissions.

Preferable one that does their own in-house rebuilds.

A lot can be "read" as to what has been going on inside the transmission when the pan is dropped

ZZ327 · March 7, 2008

Sounds ok, but has your transmission been flushed before? Often people start having problems with their trannys after flushing for the first time ever when the truck has 100k+ on it

the only times Ive heard of that happening is if theyre already having Transmission problems. Its happened to me twice!! My old truck, an 88 silverado needed a rebuild after the trans started missing 2nd gear after a flush at 180,000 Miles.

Now take my 95 silverado company truck that has had 157,000 hard miles put on. I had the tranny flushed 5000 miles ago and its going strong, They told me the original fluid was like mud!