Question about Cars & Trucks
HI!!! ok, ive been having this issue, where when i accelerate, it doesn't want to. like it hesitates until it reaches about 30 then its fine again. i figured it needed a new fuel filter, so i changed it and a serpentine belt and when i took it for a run around the block the problem got worst. it really chokes now like something isnt supplying enough of something to it to pick up, this a 5.0L V8 here, this shouldn't have an issue getting up and going. i need to solve this problem i cant drive now cause it inches along until 25ish even with the foot to the floor. also when i start the car ever since i got it when its cold its shaky and sometimes shuts off on me, when it warms up tho, its just fine the rest of the day. is it spark plugs? the car has 81,000 miles on it never raced or abused. and this issue just presented itself id say about 2 months ago and when i tried to fix it it got way worst. i need help or insight cause im stuck right now, i read up it may be spark plugs if there too old. or the wires. i dont know. thank you !!!!
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Posted on Jan 02, 2017
The cylinder 7 misfire is likely a symptom of the problem, not the problem itself.
Typically, the catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream 02 sensor reading should be fairly steady. Typically the P0420 code triggers the check engine light if the readings of the two sensors are similar. This is indicative of (among other things - such as faulty sensors in the "emissions loop") a converter that is not working as efficiently as it should be.
I do not believe that it is a problem with a valve/head gasket or cam.
Posted on Jan 13, 2009
SOURCE: i have a 93 altima
this year model is notorious for fuel related probs...check the remainder of the fuel system, injectors, and the fuel pressure regulator also verify that the fuel pump is actually running and getting the correct amount of power to the pump itself..... it may not be bad just not getting enough power
Posted on Jan 26, 2009
The main relay is bad. This is located on the driver side above the fuse panel. What happens is the temerature warms up and the soldier seperates. You can either replace this or re-soldier it. The part number is RZ-0088, you can get a new one on ebay. You will need a 10mm socket to get it out, it is behind the cruise control module.
Posted on May 12, 2011
I Have a 1999 ford f150 4.6 that back fires and is just running really ruff when idling alot of nack fire a sord of like a pulse going on what is my problem?
Posted on Oct 12, 2011
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