I'm driving a 93' sentra xe, manual tranny
A while back, early this year, i had a few problems similar to this. the car would bog, shake a little, and i'd lose power....STP fuel+injector stuff was put in, seemed to work, cause it quit doing it.
now, many months later.... i notice im low on fuel going somewhere....had to be on time, stopped at nearest gas station. filled up with Cheveron w/Techron stuff, 5gal. got there just fine, 2hrs later, i get in to leave....and the car is shaking and bogging, but still running. real hard to get up to 60mph. BAD loss of power, incomparable to the early year problem.
suddenly it works fine after getting home. so i figure, oh well. oh no. it did it again the next day, parked a while, then was fine. start it again, ran bad, parked for a while, then ran good....went on like this for a few days.... i figured i just got 'bad gas'....so i filled up somewhere else (cheveron w/techron again, coincidently). problem when away....for 1.5 days.
went on like this for a few more days, and i figured "ok, 'chevron gas+my nissan = bad'". so i drive and waste the gas for a while so i can fill up at my normal gas station....didn't get that far. i left earlier today and it was still bogging. before i came back, i let it sit and bog for 10min, and it settled out and ran fine. that technique worked twice. i get back, and 30min later i leave to a friend's place.
this time it was REALLY bad. the car shook and bogged so hard i swore it was having a seizure. it wouldn't start normally, i had to give it WOT to start and even then it slooowwly bogged real hard until i could rev it to i guess would be ~2k rpm (no tach). i tried driving it, which was a feat in itself. it would die anytime it stopped moving, had to keep within a min. of 2.5k rpm just to MOVE. it still shook and bogged 35-40mph in 3rd. it was a short trip to where i was going, so i continued, and checked a couple of things there. i had to WOT and fight with clutch/throttle ratio just to get to 30mph. i found out keeping it revved on hills at stops was a bit of a challenge (everything is a hill 'round here).
got to friend's place. there was a stench of something similar to that of something recently incinerated. probably from my having to keep high revs and only accelerated slowly.
spark plugs looked fine.
fuel filter didn't seem to be very clogged (though not sure)
i dont think an o2 sensor screwup would do something this bad.
it does this in nuetral and any gear. also with clutch in (disengaged)
i decided to try and get home. same bogging as before, but mid-way it 'surged' forward suddenly and then.....was FINE the rest the way home. im sure it wont be if i try to start it again.
im completely lost on this. my poor sentra is having strokes.... a few ppl tell me it could be in the fuel system.... the pump most likely. im almost outa gas now (curse that techron...not sure if its it, but its something to blame). im wondering if i should try replacing some stuff (plugs and filter) or try filling up with my normal gas (and adding STP stuff).
i was advised to take the hose off the filter that feeds to the gastank and lay that in a coffee can, start it, and see if there's enough fuel comin' out (to check fuel pump), since i dont have a fuel pressure gauge
.... also there's this one hose near the filter, that doesn't plug into anything, but i remember it having suction when i put my finger to it when the car ran normally.... no suction now. also there's another loose hose near there and a small outlet w/o a hose on it somewhere behind/on the end of an assembly that seems to connect to the air filter.... i could provide pics if needed...
sorry for the long-winded post, just wanted to give as much info as i could.
any ideas people? im desperate...........please?
this is my only car and i havn't the money for expensive repairs.
it's been fine up till now