2003 GMC Yukon 4.8L Don’t have those scanners that gives you extra data, just got a simple one that gives you the codes only. Well I’ve researched that it’s mainly a vacuum leak issue. I’ve checked all vacuum hoses and even used a smoker and can’t seem to find where the problem is. Is there a common area where this leak occurs? Man it’s like finding a needle in a haystack. Need help from the gm gurus. Thanks Sent from my iPhone using Tapatalk
Noob at this non engine related thing. How do I go about and cleaning the contacts. I know I have to remove the horn panel from the steering, but where do I start? Is there are pics that I can follow or a step by step thing. I’m bad with electrical components. Thank you Sent from my iPhone using Tapatalk
2003 GMC Yukon 4.8 I recently noticed that the horn on the truck works intermittently. Now it doesn’t work at all. Funny thing is that when I arm the security alarm, the horn sounds. So I’m thinking the horn works, but not when I press on it on the steering wheel. What could be wrong? Thanks in advance. Sent from my iPhone using Tapatalk