2001 GMC Yukon XL (Aka Beast)

[makintoshnex]

Get a set off Temu. Their auto section is pretty good and the set I bought off Temu for $3 was the same one on amazon for $15. Gotta wait a week but check them out. It’s a bit gimicky when you first start but I like the crap I buy off it.

I buy a lot from AliExpress. It's same thing as temu but cheaper.i paid for a set of 2 like $5. By the way you are right Amazon is reselling same thing for way higher price

 

[tooleyondeck]

Scan the truck for codes, but the brake/abs light are likely the EBCM.

I replaced the EBCM on my 99 Silverado last year, after it went out and I had been driving it like that for like 2 years, but only got driven occasionally.

Congratulations on the purchase!

I came here to say this exact thing, pull them ABS codes and if it's throwing multiple, that's your likely culprit. Also check the ground straps on the frame behind the front driver side tire.

 

[makintoshnex]

Finally gas leak was fixed. Expensive , but what could I do. I did oil change to a full synthetic, just because I didn't know when the last oil change was made. And what kind of oil was used. Now my oil gauge is throwing less then 40 on a dash. I added a quart of same oil high milage. Nothing changed. When idling it's less the 40, like half. When accelerator applied it's almost 40. What might be a cause. Oil level is top. Can't add more.

 

[Rocket Man]

Finally gas leak was fixed. Expensive , but what could I do. I did oil change to a full synthetic, just because I didn't know when the last oil change was made. And what kind of oil was used. Now my oil gauge is throwing less then 40 on a dash. I added a quart of same oil high milage. Nothing changed. When idling it's less the 40, like half. When accelerator applied it's almost 40. What might be a cause. Oil level is top. Can't add more.

What brand and exact filter did you use? I’d try switching to an AC Delco or Fram Ultra. And what brand of oil/viscosity?

 

[makintoshnex]

What brand and exact filter did you use? I’d try switching to an AC Delco or Fram Ultra. And what brand of oil/viscosity?

5w30 full synthetic. Brand I don't know. I did it at Aamco. I noticed this after I tore dash apart. Can it be that I caused that problem? I replaced cover for gauge cluster. But I couldn't remove connector , so I had to wiggle it a bit.
P.S. I added some pictures.

 

[makintoshnex]

As per ABS. Is it supposed to be like that?
Looks like I don't have wheel speed sensor on passenger side at all.

 

[makintoshnex]

I decided to marry factory antenna with 50 bmg. That what come out. Later on I will find some plastic to cover a thin leg.

 

[makintoshnex]

What brand and exact filter did you use? I’d try switching to an AC Delco or Fram Ultra. And what brand of oil/viscosity?

What will you recommend. I can stop by and buy. How many oil does it require.

 

[makintoshnex]

Ok. Still same thing here. Cold start gave me oil pressure 40. After idling for 15 minutes it dropped to 20. But the funny thing is that I saw pressure of 20 when engine was cold and not running, ignition off and truck was locked. Bought a filter Fram and will do oil change again for regular oil non synthetic. By the way, oil was changed a week ago and it's already dark. I think it dissolved some sludge.

 

[Fless]

Has the cluster ever been rebuilt? Sounds to me like the oil pressure stepper motor needs to be replaced (but do them all while you're at it). The OE stepper motors do go bad, common issue in these.

Lots of YouTube videos on cluster repair.