Automotive Help

Typically what happens when you run out of gas in a later model vehicle...Is you do damage to the fuel pump

The fuel pump is located IN the gas tank!! It is a small electric pump hooked to the fuel sending units (what makes your gas gauge work) and can be a small fortune to replace. Dunno that I wouldve put injector cleaner in it, shouldve asked me first you peckerhead.

The fuel system is made up of several different components. Starting with the pump, it goes into a fuel filter the works its way up to a fuel pressure regulator then into the injectors and thus into the engine itself.

Here is my theory....When gas is run out of the tank, it is typical that the pump takes a shit for a few different reasons. #1 fuel pumps are NOT designed to NOT have fuel running through them, they dont like that and it can fry the pump (if that were the case your truck wouldnt run at all at the moment) #2 you sucked up dirt and debris from inside the gas tank and shot it through the fuel system.

Heres what I would do first. Change your fuel filter. usually a cylindrical shaped filter usually located on the frame rail under the drivers side door. Just follow the fuel lines from the tank, youll find it trust me. I know on fords you have to have a special tool to get the filter off. Im pretty sure on a chrysler it just threads in with a couple wrenchs, dont quote me on that.

The stumbling at idle IM GUESSING is that the truck is not getting enough fuel when its at idle. By stepping on the gas you are forcing it to get the fuel it needs and prolly clears up. A clogged fuel filter will give you this symptom.

Are there any "check engine" lights on? I would think there should be. That is telling you that the ECM (on board computer) is saying there is an issue. I can tell you how to retrieve those codes depending on the year of the truck.

What concerns me is the noises. It doesnt make sense that the engine knocks now that you ran out of gas. It could be a weird coinsidence (weirder things have happened, I wouldnt be suprised) That you lost a rod bearing when you ran out of gas. Do you change your oil when ur supposed to? DONT FUCKING LIE EITHER, do you check your oil? do you maintain your vehicle properly....honestly? Id really have to listen with my own ears to see if thats the engine knocking. It COULD be the fuel pump knocking as well. After all it is just a really small motor with a piston in it. But that shouldnt be that loud.

So try changing the filter see what happens. A fuel filter should be around $10-$20 bucks and a half hour of your time to put in.

Lemme know if that changes things. Ill talk to my chrysler buddies and see if this makes sense to them as far as the noises go. Then get back to me

HRD
 
well i'll check the fuel pump. as far as the knock it most certainly came from the engine. i had a 96 explorer when i was in high school that my sister had rolled and then left running upside down. my dad bored the engine out and it ran fine but had the exact same knock. in that, if i ran premium gas it was silent, but add regular gas and that knock always came right back. anyway it seems to have fixed itself.

i just worry about the idle problem. and no, i don't change the oil ever. i pay mexicans to do it when the car beeps at me and tells me to, which it happens to currently be doing...it isn't more than 500 miles over the 3k warning beep though.
 
hmmmm....The knock you hear...does it do it at idle, or when you really step on the gas like going up hills and things like that. Does it correct itself if you put premium gas in it? Or does it do it no matter what.

Cause what it might be is just and engine "ping" because your putting cheap ass gas in it.

HRD
 
think thats what it was, cause like i said the knock is gonzo now. it is just the idle thing i gotta deal with before i let people test drive it.
 
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