wheel366 Posted January 2, 2007 Share Posted January 2, 2007 So, my mechanic thinks he has found a possible problem with the misfire I have. They looked at my MAF and it was clogged completely. So, they cleaned it and my truck ran better but only for a short period of time. Then they blew some propane into the Air filter and the truck ran better with the added fuel. The next step was putting some clean rags over the air filter to cut down on the amount of air and it ran fine again. It's running lean. We are going to put my stock box back in and see how it runs. My questions: Has anybody had a similar problem or heard of something like this? I would hate to have to take the pop charger off and have less power. Link to comment Share on other sites More sharing options...
Casey.T Posted January 2, 2007 Share Posted January 2, 2007 The Pop/KN filters do allow more air as well as impurities through... I know that 48 hours after I clean and re-oil my JWT, I also clean the MAF... Just a habbit I have gotten into to prevent any additional fouling of the MAF... Link to comment Share on other sites More sharing options...
Harbinger Posted January 2, 2007 Share Posted January 2, 2007 Its pretty common for MAF's to get fouled by excess filter oil. I don't see why your truck would be running better with less air though :confused: Link to comment Share on other sites More sharing options...
wheel366 Posted January 2, 2007 Author Share Posted January 2, 2007 Me either, but for some reason it's not getting enough fuel for the amount of air being provided. I have not recently oiled or cleaned my filter so I can't say excessive oil is the cause. Link to comment Share on other sites More sharing options...
Casey.T Posted January 2, 2007 Share Posted January 2, 2007 I have not recently oiled or cleaned my filter so I can't say excessive oil is the cause. Then it would be the exta gunk that the filter is letting through..... Link to comment Share on other sites More sharing options...
gxl90rx7 Posted January 3, 2007 Share Posted January 3, 2007 Then they blew some propane into the Air filter and the truck ran better with the added fuel. The next step was putting some clean rags over the air filter to cut down on the amount of air and it ran fine again. It's running lean. How does holding a rag over the intake supposed to its running lean?? The MAF will compensate your fuel no matter what the air flow. There is no way a high-flow filter will affect your air/fuel ratio, unless your engine is pulling so much air your injectors are maxing out, which i really doubt. It could be a faulty maf sensor, it would cause rich or lean problems, but its definitely not your filter Link to comment Share on other sites More sharing options...
wheel366 Posted January 3, 2007 Author Share Posted January 3, 2007 Umm, not being a mechanic I have no idea. I just know that I have this problem, what he did solved it now we need a permanent solution. I wish I knew what to do, but I don't. Link to comment Share on other sites More sharing options...
DJ Dank Posted January 3, 2007 Share Posted January 3, 2007 When was the last time you cleaned and oiled the filter? Since you said your MAF was clogged, just like Casey said, it could be the gunk from the dirty filter. I couldn't believe how dirty my filter was until I cleaned and oiled it a couple of weeks ago. Maybe you should try cleaning it. Link to comment Share on other sites More sharing options...
wheel366 Posted January 3, 2007 Author Share Posted January 3, 2007 I've only had the filter on for 10k miles. So, I've never cleaned and oiled it. Does anybody know of an aftermarket MAF for a 95? Maybe something along the lines of higher performance? I wasn't able to find one other than stock. Link to comment Share on other sites More sharing options...
89_trailboss Posted January 3, 2007 Share Posted January 3, 2007 AFAIK there is no such thing as a high preformance MAF. a new MAF is gona kill your wallet. Link to comment Share on other sites More sharing options...
The Pimpness Monster Posted January 3, 2007 Share Posted January 3, 2007 Out of curiousity ever do a compression test on er? Cracks can cause the syptoms you describe at times. Perhaps not likely but common enough to consider. Link to comment Share on other sites More sharing options...
wheel366 Posted January 3, 2007 Author Share Posted January 3, 2007 It's a new engine. Only been in for almost a year. So no, I've never done a compression test. It's weird. It's a misfire, but it's not. It does not affect power or mileage, but it's noticable. Strange. I wish I could explain it better. Link to comment Share on other sites More sharing options...
gxl90rx7 Posted January 3, 2007 Share Posted January 3, 2007 Try to find someone with a MAF you can borrow. swap it out and see if the problem goes away. If it is running lean, it could also be a vacuum leak - check your vacuum hoses for cracks, etc. Ive also heard of a trick where you spray carb cleaner near suspect vacuum lines with the engine running, and if the idle goes up or sounds different, you have a leak in that area. Link to comment Share on other sites More sharing options...
wheel366 Posted January 9, 2007 Author Share Posted January 9, 2007 I'm gonna have to have someone else look at it. I don't want to take it back to this shop. They took 2 months to installed my steering kit, my oil filter relocation kit and troubleshoot this problem. I have the old air box on now and it still misfires like hell when it's cold but the misfires are probably 75% less when warmed up. A new MAF is about 300, so I have to be positive that's the problem. I think they checked all the lines, but who knows. I'm loosing faith in all these shops. On a happier note, I'll have pics posted soon of my filter relo kit. It's pretty clever. They relocated the fuse box, ran the hoses away from the headers and covered in some high temp plastic crap. The filters are massive. You'll see! I think I am up to around 6 quarts of oil now. Link to comment Share on other sites More sharing options...
5523Pathfinder Posted January 9, 2007 Share Posted January 9, 2007 Maybe a vacuum leak? If they are compensating with more fuel, then air has to be getting in somewhere. Link to comment Share on other sites More sharing options...
88pathoffroad Posted January 9, 2007 Share Posted January 9, 2007 I was thinking...the MAF sensor tends to do stuff like that when it's buggered up. I'm not trying to rain on your parade or anything, I've just had two different cars do that kind of thing cos the MAF wasn't working right somehow. Have you checked the MAF sensor wiring and plug? That's a common problem, the plug somehow hits the underside of the hood and screws up the MAF readings. Or it's just easily bumped into, I dunno. Link to comment Share on other sites More sharing options...
Cuong Nguyen Posted January 9, 2007 Share Posted January 9, 2007 I know of a couple folks that had their ground wire for the MAF sensor go bad since I'm one of the guys I had to splice an external ground. Link to comment Share on other sites More sharing options...
wheel366 Posted January 9, 2007 Author Share Posted January 9, 2007 I'll have another shop look at it. I may just get a new MAF, but I need to make sure that is the problem. Link to comment Share on other sites More sharing options...
partpathfinder Posted January 9, 2007 Share Posted January 9, 2007 Something stupid and simple. Check your plug wires. Just open the hood at night with the engine running. If you see a pretty light show then that is what it is. It happen to me. Link to comment Share on other sites More sharing options...
wheel366 Posted January 10, 2007 Author Share Posted January 10, 2007 Did that already. Nothing. Also checked the plugs. No problems there either. Link to comment Share on other sites More sharing options...
Mr. Pickles Posted January 10, 2007 Share Posted January 10, 2007 I was thinking...the MAF sensor tends to do stuff like that when it's buggered up. I'm not trying to rain on your parade or anything, I've just had two different cars do that kind of thing cos the MAF wasn't working right somehow. Have you checked the MAF sensor wiring and plug? That's a common problem, the plug somehow hits the underside of the hood and screws up the MAF readings. Or it's just easily bumped into, I dunno. Ditto that, I've heard several people with issues with the wiring on the MAF sensor. Check it out, clean it, etc. Check the obvious stuff that's been suggested cause its free. That is, unless you really like your mechanic enough to pay them to do it instead. Link to comment Share on other sites More sharing options...
wheel366 Posted January 10, 2007 Author Share Posted January 10, 2007 I'll have to check the wiring. He already cleaned the whole thing. It was filled with dirt and lint, according to him. I need to decide how much this problem worth. The engine only has 10k miles on it but the truck and all the stuf that was transfered from the old engine has 195k miles on it. I was thinking about calling Jim Wolf I'm sure they have a much better idea than the mechanic does since they designed the POP Charger. Link to comment Share on other sites More sharing options...
patzx300 Posted January 10, 2007 Share Posted January 10, 2007 Check fuel pressure, I have seen aftermarket fuel filters partially block up and reduce pressure. Also, the secondary ground tied into the MAF is when you have a rich condition due to insufficient ground at the MAF connector. Link to comment Share on other sites More sharing options...
wheel366 Posted January 11, 2007 Author Share Posted January 11, 2007 When I broke my distributor, we replaced the fuel filter. Link to comment Share on other sites More sharing options...
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