Question about 2004 Chevrolet Cavalier

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2004 ls coups 2 dr 2.2 engine symptoms for bad fuel? I have ruff idol every two or three days and I called a few garages and they said possible bad fuel pump. they also said this model had a possible recall notice for the fuel pump. Is this true? please let me know.

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Not sure about the recall, but i had a terribly rough start one day, determined the fuel was low and moisture condensed in the tank and actually misfired the engine.. shut it off immediatley bought gumout fuel cleaner and filled it up with gas... let it sit an hour or so... started up fine

Posted on Oct 19, 2010

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Posted on Jan 02, 2017

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Difference between Air fuel ration sensor to O2 sensor?


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Check the water temp sensor. I'm not too familiar with Lincoln, but on GM vehicles a bad water temp sensor will tell the computer that the engine is cold causing it to dump more fuel than it really needs thus flooding the engine. The only way to start the engine is to open the throttle body enough to get the air/fuel ratio right so it will burn. If that doesn't work look at your EGR system to make sure the valve isn't sticking. It should move freely. If it's binding then it can cause similar issues, though not as likely.

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Ruff idol, poor acceleration. EGR light on. Idol was ruff for several days. Replaced distributor,coil,spark plugs,spark plug wires,air filter and fuel filter. EGR light did not come on until after the...


Cycle your key on (not start) then off, on, off, then on and leave it on. Now count the flashes from the "check engine light" and get back to us with those codes. It will flash a 2 digit number, but pause briefly between numbers. For example: 3 flashes,pause, then 3 more flashes is code 33. 1 flash, pause , then 5 more would be code 15. When you get 5 flashes, pause, then 5 more, that's code 55 and it just means end of message or codes. You'll also get a short pause between codes as well, so have a pad and paper ready and keep your eyes on the check engine light.

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Engine runs ruff until high rpms for 2 mo. now runs ruff then smoth,ruff then smoth at all speeeds


Hello. I recommend that you go to any auto parts store and purchase two bottles of dry gas and one bottle of another fuel additive called Seafoam. Pour all three bottles into the gas tank. Then drive for a few miles and you may have solved your problems. Joe

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2001 Chevrolet Blazer LS 2-dr, 4 wheel drive, 2 cranks to start


Try replacing the fuel filter first, but it sounds like your loosing your fuel pressure prim when the fuel pump is not working. The fuel pressure should be 62-65 PSI with the engine not running the the ignition key turned on and should drop about 5 psi when the engine is running. If you turn the engine off and check the fuel pressure, it stat steady for morn then 15min. If it drops fast, then you have a leak at your fuel pressure regulator (common) or your return fuel check valve which is located at your fuel sending unit.
Start with the simple and replace the fuel filter, it could just be to dirty to pressurize the fuel system fast enough giving you the hard start.
Thank you for using Fixya and good luck

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Running on half the power, running rich and rough idol


You likely got water under the coil cover while detailing it. I would take the covers off, clean all the water out and dry it out. Take each coil out, dry it out and reinstall it with some dielectric grease in the boot and hope for the best.

I had a customers with an 02 LS recently that had a similar problem. I tried to get away with just replacing the problem coil. But every other week he came back with a misfire an another cylinder. We ended up replacing every coil and it's been good ever since. Be prepared to shell out for 8 new coils eventually. Get new covers while your at it. The coils are about $90 each, covers are $17 each.

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I have a 2001 Volvo S40 Turbo. Several months ago, My cars turbo didnt seem to be working. and the car was spitting and sputtering. I had the codes checked and found a misfire on Cyl 1 and 2. Or possible...


Replace the mass air flow meter.Thats the sort of problem you will get when its faulty.And this should be changed every 90.000.I think your fuel consumption has gone up aswell due to the air flow meter.hope that was helpfull.Good luck.

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1 Answer

Loss of power


Sounds like either
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