2008 GMC Canyon SLT 3.7L
Hello 355 nation. Need a little help or some thoughts as to what is causing this weird ticking noise on our 2008 GMC Canyon SLT 3.7l. The noise started about 2 weeks ago. At first we thought it was either lifters or valve guides (possible that could be the issue). Anyways the sound isn't constant. The ticking noise is definitely coming from the engine compartment area but it starts out as a soft tick and then gradually gets louder. Lasts for about 2 mins then stops. About 10 min later it will do it again. This will happen during the entire time the vehicle is idling. And it only does it when it's idling.