Been lurking around the boards for awhile now first post though. I have a 87 swb montero, and I cant figure out whats wrong with it hoping you guys have some advice to help me figure out this engine problem. It all started about 3 weeks ago My montero randomly started stalling out I figured it was just because of the weather change. Then it was fine for a few days. Then out of no where it just starts running like crap couldn't give it anymore than 1/4 throttle or it will just bog down, and die. Was like that for like 2 days then it wouldn't run at all would start and idle okay, but as soon as you would put it in drive and attempt to move it would just bog down. Looked at everything, and didn't see anything wrong. I finally gave up, and took it to a dealership, and they told me it had a bad reed valve, and that was blowing exhaust gas back into air cleaner. they also said it had a leaking intake gasket, and they wanted almost a 1000 bucks to fix I laughed, and said no way unplugged hose running from reed valve to air cleaner, and it ran great........drove it for about a week while i waited for new part to come in, no problems then out of nowhere started running like crap again. Now they only way I can keep it running is if I keep the air cleaner lid off or don't tighten it down....runs good this way no problems. Ive replaced plugs, they looked fine.....put in a new air filter which is basically trashed after 3 days...put a new pvc in it no change. Have not replaced intake gasket, because I don't feel like that is the problem. With the lid closed it sounds like its backfiring, and smell's like raw fuel, and oil is blowing back up through carb. I just dont know where to start on this Im used to my OBD II cars where I can just get a code and diagnose from there, and me and carburaters don' get along very well lol. I remember fiding a post on here that the person had the exact same problems as mine but a solution was never given. Sorry if this was so long just trying to explain the best I can. I need this fixed so I can start driving my Montero again I miss it. Any help would be appreciated thanks.....Sean
