2002 2500hd 6 liter gas.....uses a lot of oil

[Lilmoe078]

My 2002 2500hd check engine oil light just came on...I changed the oil in it bout 3 weeks ago and now the light comes on. It doesn't smoke or anything. I checked the oil stick and it is low. What else should I check on it???

[Chris]

Look for evidence of any leaks first

[Lilmoe078]

Forgot to mention that. I have seen no leaks nor any oil dripping from underneath the motor.

[Carder09]

Check your oil cooler lines.

[Chris]

Could be a PCV valve that went out.

[Chris]

Also I moved this to the correct section

[Lilmoe078]

Alright thanks chris. Where are they located at ??

[Chris]

PCV is on the valve cover I believe

[Carder09]

To check the PCV valve, remove the hose from the brake booster then start the truck, you should be able to hear and feel suction from the hose, usually a good sign, also shake it and listen for audible movement, another good sign its good.

[Chris]

It's a 2500. It will have hydro boost brakes. So no vacuum line to the booster.

 

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[Lilmoe078]

Thanks guys I'm still trying to find the issue. Still no luck

[ATMINF]

Using that much oil is not normal. Since the truck takes 6 quarts of oil, and the low oil light comes on at about 3.5-4 quarts, your truck "used up" 2-2.5 quarts, its going somewhere. Like others have stated, check for leaks, but its going somewhere.

[txab]

You have owned this truck for a while and this is a new problem? Never happened prior to your last oil change?

[Lilmoe078]

I just bought the truck in early January and haven't any problems prior. When I was under the truck changing the oil I couldn't find any leaks or any wet spots anywhere. Just today I drove it to work which is about 20 min drive and the light came on in the am....after work I started it and the check engine oil light did not come on at all and hasn't been on the rest of the day.

[txab]

Stupid question.... how many qts of oil did you put in it? Six is what it takes. How low is the oil on the stick?

 

if you're not leaking it, you're burning it.