My 2000 cherokee keeps getting check engine light i have gone to my local garage and had them run the code and i keep getting large evap leak they say gas cap so i get new gas cap then the most recent time they say vacuum hose leak where should i look for leak at

 

Open the hood and see if you can hear it.

 

find a shop that can do a smoke test on your evap system. that is how I was able to find my bad vac hose.

 

my dad had a 2000 dakota and it would get a check engine light if the gas cap was not tight enough.

 

before you take it some were and pay some one for something simple. grab a flash light, roll under you jeep in the back. you will see the charcoal canister (black on in front of the tank, on the drivers side If I remember correctly. looks like this.... (ignore red writing, black writing is it)



make sure none of the hoses are off. or torn like this.

 

was gonna say that, had the same problem

 

Thanks i will check that but it sounds like a ticking noise is coming from the evap service point under the hood didnt get time to look at it think that could be the problem

 

A picture is worth a thousand words. I have the same issue and these pictures lead me right to the source of the problem. Thanks.

 

glad to hear it helped you out!

 

I got the same problem on my cherokee 2000 sport. Now i am smelling gas in the cabin. Don't see any gas leaking underneath anywhere. Although the first time the code came up i did not smell any gas and the code went away for a while ( about a month) after i checked all the hoses and gas cap.

 

You won't see it leaking its vapor. That's why its called evaporative