My car jitters when i drive and dont know what the problem is
When i put fuel in my car it runs fine for about 200-400meters then it justs start to jitter, at first i thought its got to be the engine but the engine sounds fine when i rev it and when it in addle it doesnt make any strange noises....
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Check to see if it is flooded, When you attempt to start the car put your foot on the accelerator and put it to the floor, keep it to the floor whilst trying to start the car yet dont pump the accelerator just keep it flat to the floor.
If it turns over the starter motor is fine,
Fuel Filter and pump is fine,
You got a spark so the electrics will be fine,
Just need to limit the problem down to whats happening under the head.
have you changed the in-line fuel filter? its on the drivers side under the truck on the inside of the frame approximately under the drivers seat. If you do change it make sure you install the new one pointing in the correct direction. If that dont fix it, its probably the fuel pump going out...It may run but may not be putting out the right psi which should be around 90 psi, and will only get worse, hope this helps you. P.S. Youll have to drop the fuel tank to change the fuel pumpo as its inside the tank, oh yeah there is also a strainer on the fuel pump assembly that sometimes can become clogged. I dont know why they cant put an access door in the cab somewhere over the tank to make changing the pump alot easier lol....good luck
well, check all ofthe fuses. fuel pumps dont "start going bad" they either work fine or not at all, so you wont have to worry about that just yet. consider replacing the fuel filter, and running a health dose of B12-Chemtool or some other kind of high performance injector cleaner every single time you put fuel in the car. this stuff works better if you start using super octane for a bit too.
Sounds like the injectors may be bad or just really dirty. You say that the truck is only used as a plow truck, so I would assume that it sits alot. If you dont add any fuel stabilizer to the tank, the fuel will start to degrade and the will gum up your injectors. One thing you can do is to pull the air cleaner assembly off and look at the injectors while the truck is running. Look at the bottom of the injectors while it is running. The injectors shouldbe spraying fuel with a fan spray of fine mist. If you see any drips of fuel in the this fine mist, that injector is at least dirty or on its way out. I would recommend that you change your fuel filter and then get some fresh fuel and the purchase some Seafoam fuel injector cleaner from your local parts store. Dont mess around with anything else. GET SEAFOAM. If it is in a plastic bottle it is not strong enough to do anything. Seafoam is in a metal can. Dump the seafoam in and run the truck as much as you can. This will help clean out the injectors.
You may need to look for a vacuum leak or double check your timing advance/****** is operating correctly.Use a can of carburettor cleaner lightly sprayed around suspect areas,do with engine running and if there is a leak it will stop the engine running.As far as the fuel system goes crimp the fuel return line with appropriate tool so you dont damage it and see if it improves.If it does you do have a fuel problem with the pump or the pressure relief valve
it might be the fuel pressure regulator, i have a similar problem with my 95 302. but mine just dies but starts right back up. i was told fuel may be evaporating out of the fuel lines, when it doesnt start the first try i pump the gas pedal 2-3 times and it starts right up.