could this be my cat, fuel pump, or something more serious?
06-12-2006, 10:13 AM
#1
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could this be my cat, fuel pump, or something more serious?
ok. when i start my truck, it will almost turn over sometimes, then just kind of die a little. but other times it will start just fine, then after i give it a little gas, it dies. one of the local guys said something about the cat being clogged, but i haven't really ever heard of it doing that. my thought could be fuel pump. how far off am i or is it a good thought? all the post i searched never said anything about a clogged cat making the truck die. thanks in advance.
06-12-2006, 12:45 PM
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Does it ever start and run? With a clogged cat, it would run like crap if it did run. As mentioned, a clogged fuel fiter would do it also. On a 98, if both the cat and fuel filter are original, both could be doing it.
Jim
Jim
06-12-2006, 01:27 PM
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no i haven't checked the fuel filter yet. i don't know where it is at on this truck. yes it will start and run on occasion, but if it sits, then it will start dying again after giving it any gas. it runs a little rough at times, when it is running right now. this is the first this has happened in the two years i have owned it.
06-13-2006, 04:51 AM
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Originally Posted by Toe
Fuel filter "could" be in the tank, pain in the *** to get out as you'd need to drop your tank.
IF it is intank, I have found out through personal experience that the bed comes off easier than the tank goes down.
06-13-2006, 07:43 AM
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yeah i hvae been told that it is in the tank. what all is invovled in changing it myslef if it is in the tank? never done it before and i know my dad will blow a gasket if i try and do it myself.
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06-13-2006, 10:57 AM
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Like mentioned, it may be easier to remove the bed, may only be 4-6 bolts then lift it off to get access to the top of the tank. Then you'll have to pull out the parts that are in the tank, may be the fuel pump, gauge sending unit and the filter. The tank may be easy to drop, just a couple of straps, look at it from below. You can also have you cat tested, a good exhaust shop should be able to test the cat and see if it needs replacing.
Jim
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06-14-2006, 12:40 PM
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There is a filter on the pump assembly in the tank but there should also be an external filter too. Look underneath along the frame rail on the same side as the fuel filler door. One other way is to check what it looks like at a local auto parts shop. It may not hurt to replace whether it is the problem or not.
One other thing to check is the fuel pressure regulator. A bad regulator or poor vacuum connection will cause the symptoms you are seeing.
One other thing to check is the fuel pressure regulator. A bad regulator or poor vacuum connection will cause the symptoms you are seeing.
06-14-2006, 07:26 PM
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There was an outside fuel filter on my 99 that I replaced at 50,000 miles just before I replaced a VERY clogged cat.... that thing would not move out of it's own way! when we got the cat off the screen was just moving around in the cat and was totally plugged. I guess when the screen hit the outlet just right the truck just would not move... whole nuther animule when it was replaced!
TJ
TJ