Owns A Torsen
Joined: Mon Sep 18th, 2017
Occupation: 5 axis cnc programmer
Reputation Points: 9460
|Welcome to FR! The lowest budget peace of mind thing you could do is get another opinion or get a cheap compression gauge and check it yourself.
The actual compression isn't as important than a balance between cylinders. It has been argued to no end but I personally like to see no more than 5% between the highest and lowest cylinder with the engine warm. Then you can diagnose the lean condition if the compression is good.
Low compression at that mileage I would bet money on valves but it could be a number of things. Some people believe in using sea foam but I personally do not.
Oil change with synthetic 5W20 helps, you can do that yourself for about 40 bucks if you have the wrench.
You will not fry the computer with a bad O2 sensor. You have 4 on that one, 2 upstream and 2 downstream. The upstream ones are important, the downstreams are fluff. Funny thing they are the exact same sensor with different length cords.
Plenty you can do for under 100, but there does come a time when you have to let go, even with that wimpy but indestructible 3.0.
Tony is correct on his opinions, some extreme cases you can get 350 or 400K but it is usually an extreme case in a state with perfect weather, garage kept, driving daily for over a half hour each trip, more frequent than needed oil changes. Short trips actually wear an engine not giving it time to evaporate the natural condensation in the crankcase.
We wish you the best of fortune and luck with your cool little truck!
00 XLT 4WD RCSB 3.GO! Jalapeño
01 XLT 2WD RC Steppie 3.0 auto Silver
Gab is like a cool local coffee shop.
Gettr is Starbucks.
Twitter is some serial killer serving people antifreeze.
Let's Go Brandon!