2000 GMC Jimmy The Right Choice of Tune Up Parts

JMTERRY

MEMBER
2000 GMC JIMMY
6 CYL
4WD
AUTOMATIC
133,000 MILES

I just bought a used 2000 Jimmy 4w drive, and love it, but it's a gas guzzler (13-15 city, maybe 20 highway). I have already done or added:
a radiator flush - with new fluids
chemical engine clean - switching from oil to Mobil 1 synthetic oil.
added: (for the moment)
an oem oil filter
an oem gas filter

and
spent the cash for a K&N lifetime air filter!

I was ready to buy Bosh Platinum (due to advertising) but the man at Pep Boys is arguing heavily that I buy AC Delco, which are made for a "Jimmy" and won't "throw" off the "rest of the on board components" like a german plug with different specs might do.

anyhow -- what plugs do I get, and what else should to be done, and most importantly, what specific "best of the best" parts should I invest in to make the Jimmy "solid". I do small millage in city driving, some highway - an occasional up a mountain trip, but not very often.

I'm glad I got the K&N air filter. And now I desire a better than OEM everything.

I'm thinking of the Fram High Mileage oil filter for cars with more than 75000 miles. (Because of their advertising) but will it "improve" anything?

I'm not sure what fuel filter to use. (Or if I even need a better than OEM model).

I'm told that I don't need to concern myself with the oxygen sensors - since they are not moving parts -- and there are no warning lights, etc.

Now that I've cleaned the engine and switched to synthetic oil, I don't know if oil or gas additives work, or are necessary. Wonder about Fuel injector cleaners. And what products are "superior" [best for my Jimmy] like the K&n Filter seems to be.

And I intend to degrease the engine.

So, without asking you to take up a LOT of time, for the money I'm offering -- what's your best advice for a novice that is willing!

3 Replies

SERVICE WRITER

MECHANIC
9,123 POSTS

My advice is too keep things in perspective. Prot maintence was the key here. IF the maintenance was not kept up with early on, you are problably throwing money away. Don't spend a ton of money to "marginally" improve a running beast.

You don't need synthethic. You don't need a special filter. I use napa pro-select and have no qualms with them. Just doing the maintenence is the goal. Don't forget the transmission filter! Differential fluids, possible brake and power sterering fluid changes. Don't get me wrong. Mobil one is a superior product. But on the other hand I can get just as drunk from labatts as I can from top hat. Might not be the perfect example, but.

Don't flush the engine oil, this is a "don't fix what ain't broke" thing.

Use the delco plugs or autolite plugs. Since they are double platinum, replacing with the iridium plugs may be a good upgrade. Bosch splitfires are problems more often than not.

Why degrease the engine? Just curious.

Did you see our section gas saving tips?

A BG air inducton cleaning would be recommended

Leave the O2 sensors alone, they are happy.
Don't piss em off. ;-)

Keep in mind this is bad investment, a vehicle is an expense. Look at what you get in return for what you spend. Some things need to be done, but marketers can make something unnecessary look good. If you are going to put on a "High Miliage" filter, understand why the product is better?