San Juan Sube

So every once in a while my rig will start to get a sort of "pulsing" idle. It isn't fatal but it obviously isn't right, it will hang around 1k rpm, just above and just below. It almost sounds like a heartbeat if that was possible. Looking for suggestions to what it is! Thanks.

Thanks guys! I am happy with it, I wish it had a little more power, because I want to start more off roading, but its more than enough for now.Me and my dad are looking into lifting it 2-4 inches, give it a little clearance for the big tires hehe.

Hey USMB, I thought today was as good a day as any to get posting! I am new to learning about cars, and i plan to learn a lot. I have a 1991 Subaru loyale, and i recently put 14" rims, with Winterforces on it. I've also recently changed the timing belts, water pump, and other small things. I am looking to learn tons so any input from you guys about my car is appreciated. Thanks a lot! Looking forward to keeping up with you all. Here's some pics of the car and how it looks now.

I'm on an island! Lummi Island