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Old 06-18-2012, 12:58 AM
elektromaniak elektromaniak is offline
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Default Major acceleration issues, wont go when pressing the gas. Almost got stuck today :(

Hey guys,

I have a Dodge Ram 1500 1999 V8 with 5.2L engine. It's not my main vehicle, I use it mostly for work and doing house renovation & garnening.

I noticed a few weeks ago some issues when pressing the gas pedal, sometimes it wouldnt go.

Initially it was very slightly and wasnt really affecting my driving, but a few days ago, it would hardly go. Basically when pressing very slightly it seemed ok, but if you just pressed just a bit more then it wouldn't take it's gas.

I almost got stuck today, it wouldn't take it's gas and on top of that I could hear like a few small popping sound from the engine (sounded like small detonation) or something. I put the 4 flashers and release the gas on the right lane, few seconds after I pressed very lightly just to get it going then it seemed ok and I made it home.

I had the truck for about a year and half now, I didnt have any of those issues initially, it pretty much started in the past few months.

I was told it could be because the fuel filter might be clogged, or possibly the spark plugs. (The wires and cap were just changed by the previous owner).

I just put in a new battery today and also added a fuel treatment kit in the gas tank hoping it would help cleaning the fuel system. However the problem still persist.

I would really appreciate your advices regarding this. I am not quite sure how I should tackle this. I looked around for the gas filter, but I couldnt find it anywhere, (usually they are under the driver side runner panel on most truck).

Someone mentioned the gas filter might be in-tank only, is that right for the 99? Or if you have any other idea of the issues, that would be great.

Not willing to bring it to a shop and spend a lot on it, hopefully it's something I can fix in the driveway

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Old 06-18-2012, 10:18 AM
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namretsud namretsud is offline
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Sounds like a plugged cat. You can also try adding some seafoam to your gas. Quick test for the cat is to take the precat o2 sensor out and run the engine to see if it improves, if it does it is the cat as you have releived some of the backpressure of the plugged cat. Very common problem with this age of truck.
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Old 06-19-2012, 12:51 AM
Screamintrashcan Screamintrashcan is offline
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You have no fuel filter, unless someone put their own on. Buy, rent, borrow or steal a fuel rail pressure gauge, and stick the gauge beneath your wiper and go for a ride, until the engine turns into a bad actor again. Any twitches in fuel pressure? If so, you need a pump, if you have friends, take the box off to change it, its easier than dropping the tank. If no twitching, in fuel pressure, 35-40 is good, steady under all conditions is the important part. Look, with a flashlight into the intake throat down the manifold, if theres oily film in there, with the throttle held open, you have a blown plenum gasket, and will need to change it. Try not to snap the mount bolts in the heads. If theres no oily residue in there, I'd look into cat problems, though I'm not convinced that this is your prob... No check engine light? I'd think you would have one, if it were a sensor for throttle position. many options possible. If you have a check eng lite, get a code reader, and post again, Good Luck!! PS Does it not go because its 'stuck' in the wrong gear, or because it doesn't want to run? If it's not shifting properly, IE stuck in wrong gear, you may need to replace the TPC, or throttle position sensor. You didn't mention if it shifts reasonably properly, knowing whether or not it does would help.
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