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Car Forum / Dodge / Dodge Trucks / February 2007Strange Problem
I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently (last 2 or 3 months) when my gas level get to between a little over 1/4 full (empty).The check engine light starts to blink and the engine starts to backfire/miss-fire like crazy! It seems like I am running out of gas, I know this is not the case. Because when I fill it after this happened, the amount that goes in is correct. The first time it happened the low gas light was on, which I believe is about 6 gal. left. Since then it has happened 4 or 5 times all when I have over 1/4 tank left. When I read the error codes (P0300 - P03005) all that tells me is that the engine has been miss-firing (DUH!). I had the fuel pump replaced at 250K miles and other than the above problem the truck runs great. The only thing I can think of, is something is blocking the intake on the fuel pump, since I have no idea what the fuel pump even looks like since I had a garage mechanic replace it. Other than that I do all my own repair/maintenance. Does anyone have any other ideas? Since I really don't want to drop the tank and pull the fuel pump. My one idea was to cut a hole in the bed, right over the fuel pump and pull it that way, but I am not sure that is possible. Thanks David > on, which I believe is about 6 gal. left. Since then it has happened 4 or > 5 times all when I have over 1/4 tank left. Two possibilities... your tank's vents could be blocked, causing a vacuum in the tank, which will eventually prevent the pump from drawing fuel. When it happens, remove your gas cap, and listen for air rushing in. Or, there's a hose between the fuel pickup and the pump. If this hose develops a crack, when the fuel level drops below the crack in the line, the fuel pump will start sucking air instead of fuel. > Since I really don't want to drop the tank and pull the fuel pump. My one > idea was to cut a hole in the bed, right over the fuel pump and pull it > that way, but I am not sure that is possible. It's possible, but you don't want to destroy your bed like that. Dropping the tank isn't really that hard, if it's relatively empty. A floor jack and a piece of plywood will support the tank, and two bolts hold the straps on. First, thanks for those ideas. Now that you mention it, when I crack the gas cap, I don't hear rushing in at all. I seem to remember hearing a air hiss before. I should hear a air hiss, when I am low on gas and open the gas cap, correct? Or has my age finally caught up to me...lol. Thanks again David >> on, which I believe is about 6 gal. left. Since then it has happened 4 or >> 5 times all when I have over 1/4 tank left. [quoted text clipped - 15 lines] > and a piece of plywood will support the tank, and two bolts hold the > straps on. ..... Does your name stand for Dimethyl Sulfoxide ? >I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently >(last 2 or 3 months) when my gas level get to between a little over 1/4 [quoted text clipped - 16 lines] > Thanks > David You can ask your question about your son's truck even if it is a ford. Most here don't care and if they have the answer, will share it with you. This group is unique in that manner. Roy >I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently >(last 2 or 3 months) when my gas level get to between a little over 1/4 full [quoted text clipped - 16 lines] >Thanks >David If you're going to cut the hole in the bed with a torch please have a video camera running. It might make for some great TV. beekeep Yeah, if I did it with a touch I would (or what is left of me) be on local news, lol. Acually I had planned on using a right-angle grinder, with water hose running on the cut. However I am going see if I can fix the problem using Tom's suggestions. But if I change my mind, and go the flame route, I'll have a cam running. Thanks for the concern, lol. >>I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently >>(last 2 or 3 months) when my gas level get to between a little over 1/4 [quoted text clipped - 28 lines] > > beekeep > I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently > (last 2 or 3 months) when my gas level get to between a little over 1/4 full [quoted text clipped - 16 lines] > Thanks > David David, In case you get into the situation where you are about to drop the gas tank to access the fuel pump: I did this about 6 or 7 years ago on a friend's '96 1500 SB, and there is an easier way. On this model, the fuel pump cartridge was mounted very much forward in the tank. I found that all I had to do was disconnect the fuel filler hose, unbolt the rear bumper, take the four (I think) bolts out that hold the bed to the frame, and maybe disconnect/unclip a few wires and tubes. Then I just slid the bed back about a foot on the frame, and the fuel pump could be reached from above, right behind the cab. Don't remember for sure, but I believe it wasn't even necessary to completely remove the bumper, just rotate it down enough to let the bed slide back. Martin > > I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently > > (last 2 or 3 months) when my gas level get to between a little over 1/4 full [quoted text clipped - 38 lines] > > - Show quoted text - Another advantage of this technique is that you don't have to empty the gas tank. Martin > > I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently > > (last 2 or 3 months) when my gas level get to between a little over 1/4 full [quoted text clipped - 38 lines] > > - Show quoted text - Oops - got dyslexic - no need to unhook the fuel filler tube - tank stays put. I've done it both ways, sliding the bed on a pickup and dropping the tank on a van. Martin > > > I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. Recently > > > (last 2 or 3 months) when my gas level get to between a little over 1/4 full [quoted text clipped - 42 lines] > stays put. I've done it both ways, sliding the bed on a pickup and > dropping the tank on a van. If you don't unhook the fuel filler tube, how exactly do you intend to slide the bed back?  SignatureIf at first you don't succeed, you're not cut out for skydiving > > > > I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. > Recently [quoted text clipped - 64 lines] > > - Show quoted text - You're right, I was trying to type while actually getting something done here at work, and messed up. Call it mental dyslexia. Plus, it's been seven years since I did that job, and I only did it once (not my real line of work). But believe me, it was much easier sliding the bed back on that pickup than dropping the tank on the van. Martin > > > > > I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. > > Recently [quoted text clipped - 70 lines] > (not my real line of work). But believe me, it was much easier > sliding the bed back on that pickup than dropping the tank on the van. I bet that it was and sliding the bed back is a great idea. I'll have to look into doing it that way myself. SignatureIf at first you don't succeed, you're not cut out for skydiving Dude dude dude sliding ur truck bed, please dude its really nonsense. Just use jacks and get bolts off and take out fuel pump, replace the part that "swallows gas", seeing screened part bottom of the pump. It might be clogged man. I got agree with that dude, clogged causes vaccum effect when hit gas and its not sucking anything, causing backfire lol man. Moving ur truck bed is more work than taking tank out is my conclusion man > > > > > I have a 1996 Ram 1500, 4X2, 5.2, w/auto and 295k miles on it. > > Recently [quoted text clipped - 72 lines] > > Martin On Feb 9, 1:57 pm, angelobr...@tmail.com wrote: > Dude dude dude sliding ur truck bed, please dude its really nonsense. > Just use jacks and get bolts off and take out fuel pump, replace the [quoted text clipped - 3 lines] > backfire lol man. Moving ur truck bed is more work than taking tank > out is my conclusion man Try it both ways before you judge. Sliding the bed was a one-man job on the pickup, while dropping/replacing the tank on the van required a helper to hold, support, and position. Martin |
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