No the BJs are more important. But the 02 sensor, zero chance they are defective. All three heaters share the same wire. Wiring could be marginal. meaning it looks good but can't pass the full current.
The heated sensor is not complicated. Just a fuse and the PCM involved. This is not much different than you would find on brand new car today.
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Thanks. I need to figure this out. So now that my mech has crossed out any of the o2 sensors being defective and working and receiving voltage from the PCM just fine. And all the wiring under the truck where the sensors plug into are fine. And the fuses are fine.
I sure hope the PCM doesn't have to be replaced.
It has to either be the wiring under the hood from the PCM (near the firewall) or my thermo sensor issue (with it not working properly and going up and down between 1/4 warm to 1/2 warm and back and fourth.
Are you saying it's okay to drive the truck with the CEL on for the time being? What if I can't ever figure this out?
Update: I did some thinking and I've decided that I am going to keep the truck and go ahead with the ball joint repairs BUT this is the last amount of money that I will be putting into the truck right now for anything. I just can't toss everything out the window right now. The truck runs great and I need it, plain and simple. Shocks will be done (hoping later this year) but it's not an immediate need. Will only be doing the fronts.
When I started doing the math, the $3425cdn that I've put into these repairs just recently doesn't look near as bad when I look at the grand scope of things this way.
I bought the truck 25 months ago for $2000cdn. Buying any truck or SUV at that price will always require some more money put into repairs. I didn't do any repairs except buy a new set of tires. So in the 25 months that I've had it driving it, I put $0 into repairs. I was well over due for them.
Costs:
Year 1: $2000 (my purchase price) - Works out to $166.67cdn a month to drive it. Cheap for a truck compared to a brand new one.
Year 2: $2000 (deducted from the $3425 that I just put out for it in the past month) - Works out to $166.67cdn a month to drive it. Cheap for a truck compared to a brand new one.
Year 3: Total cost invested = $5425 - $4000 (cost to own for the first 2 years) = $1425
So basically if I view it in the way that $2000 of the $3425 that I just spent is offset as year 2 costs, then my current year 3 repair costs are only $1425 to date, which to me sounds very reasonable. When I view that number for this year then it's not near as bad as just seeing it as a huge lump some all at once.
So I can add the cost of the 4 ball joints and new arms + the cost of the labour and it would come out with still a reasonable number for year 3.
I just ran an order on Rock Auto for Moog premium lower and upper bj's and premium upper arms. I was going to go with AC delco professional but with shipping it was $80 more and since I am getting Moog premium grade, it's just as good. Plus a big thing is the AC Delco pro's are pregreased and you can't squirt more grease into the boots over time, whereas the Moogs you can. So this was the huge tipping point to go with Moogs because I plan on squirting grease into them every oil change or so, to keep them well lubed.
How difficult is ball joint installs? Is this something you would trust a backyard mech to do? I mean if I wanted to cut costs even more, I could go with another backyard mech to do the job. I was quite shocked by the quote my main mech gave me today of $500, that seems rather high (and he's the cheapest of my 3 main mechs I've been using for years).