I have a1991 hyundai excel i have replaced the

Hi there sound very much like a failed fuel pump, they are electric and is possibly under your back seat, turn ignition on a listen closely for a humming noise, if not there then I would say you need to replaces the pump, check to see if you have power to the pump first, use a test light, hope this helps cheers good luck

Feel like running out of gas is usually an engine miss fire. Brake noise is usually low brake pads. A long shot that both these relate to each other is broken breather hose (what kind of noise are the brakes making?) Engine miss fire is either worn plugs or ignition coil.

Sounds internail, Hopefully it's just maybe a rod bolt come lose. But could also be the camshaft, Check and see if your still getting fire to plugs, If camshaft is busted it will not fire. Befor you have any work done be sure to get a sec, opinion and price quote. Best of luck to you.

check compression

Most four cylinders are: 1-3-4-2

start with a cam sensor.

hi from uk if this knocking appears on full steering lock and yo are moving ? then this may well be one of the C V joints worn the noise will be momentum/clicking loudly ? other than this if knock is very hard only as you turn steering whist stationary ? you may have one of the suspension strut coil springs broken/cracked ? either way you will fist have an assistant help you by listening to hear which side of car noise sounds to be coming from ? both these possible?? faults are not beyond a competant /tooled up diy job to fix saving $$$$s in garage repair cost and you can purchase parts req'd from good motor factor/super auto outlets hope this helps/inspires you ?

Go to www.hmaservice.com and register( Vehicle by VIN). Afterward, you have access to shop manuals, service bulletins, wiring diagrams, etc. about your vehicle.

http://www.autozone.com/N,26200242/shopping/specsSelect.htm

You can try the firing order if that doesnt work let me know ill keep helping

did it start before you changed plugs?