So I have 95 1 liter 5 speed, it runs fine and smooth first thing, but once it gets warm it idles rough, poor mpg 33-37 and eats a lot of oil have to say a quart every 300 miles does not leak oil, does not smoke, need new muff and resonater.
Check engine light is not on. can i hook it up to hand held code reader .? 95 is it obd 2?
Regarding my problem (outline below):
>> Went for a refueling stop, and thereafter proceeded onto the highway
>> Approx. 500m into the drive onto the highway the car started jerking and running rough with an initial puff of smoke (none thereafter)
>> Immediately after this initial jerking/shuddering there was a significant increase in fuel consumption i.e. from a familiar 8.2L/100km to 18L/100km in the cruise
>> We continued driving not knowing what it was (I suspected a spark plug may have stopped working)
>> Pulled up at the gas station to observe what went wrong inside the engine bay - no signs of any leaks, fuel sprays, etc. but only that the engine was shaking
>> I checked the rear of the car while the car was idling and observed a pulsating sound...some light smoke and a fuel-rich egg-like smell
>> Asked around and I was led to think the catalytic converter was ruined, so the next day I had the catalytic converter cut out
>> After removing the catalytic converter the problem persisted...although the engine operated with slightly less flow resistance
Attempt at diagnosing the problem
>> My wife called in a technician from BMW at Canal Walk to come have a look and what errors were flagged
>> The tech ran the diagnostic and no fault codes were indicated, except a few short circuit faults due to my incorrectly placing -ve on +ve when I tried to charge my cars battery with jumper cables
>> He proceeded to ask if we changed the spark plugs, I said yes. He then looked at the oil on the intake manifold and said there could be a torn valve on the intake manifold and that air that is not measured by the air mass flow sensor is entering the engine, which is causing the car to rev hunt (this problem of rev hunting has been with us for a while). The engine also shuts down uncommanded at stops and sometimes between shifting gears with the subsequent loss of power steering (very dangerous!!)
>> We also had the O2 sensor replaced a month before this occurence
The images attached (#1- #3) are marked up to indicate the component I am referring to.
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Went to Cape City VW in Cape Town and the part number for that orange thing/diaphragm is 06A 198 205A 'Repair kit for valve'. Is this significant? The car sounds as strange at idle...as if has noisy valves. I can upload (if there is an option) a sound clip of how the car sounds if this assists.
I bought a 95 geo metro it ran for a few days then stop running. i have replaced about everything, new plugs, spark plug wires, sensors carborator etc. it seems like maybe it could be the timing but timing seems on. it wont turn over.
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I've read many blogs and other web pages on this, and it's a common problem with this particular Honda engine. Is there any chance that this oil usage is something besides worn piston rings? Some people seem to think it might be worn valve seals, and/or worn camshaft seals? how expensive is that to get fixed? If it's any of these things, is there really any practical solution other than a new engine, or maybe a rebuilt?
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I have a 2001 Jetta GL 2.0... For the past could of months I have had a mysterious oil problem. I constantly have to put oil in. I have changed it. Always put in the correct amount, right around 4qts. I have changed the head gasket, no leak there anyways and there still isn't a leak. I checked the exhaust and I'm not burning oil. I am completely stumped. What else could be happening to the oil? I just changed my oil about 1200 miles ago and I have already added another 2qts. That is just insane. I have gotten to the point where I am checking my oil every single time I drive to work and back, daily. I do all my own work and have never once noticed any leaks of any type. Something is sneaking by me though.
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View 19 RepliesI have a 1996 Geo Prizm, with about 126K miles. I bought it last May, at around 120,000 miles and had no problems with it until recently, other than some minor issues with the power steering in November. In November, it started making a squeaking or grinding noise whenever I went around a sharp turn. It turned out that the power steering fluid was slightly low, so I added more and that was the end of that problem. But I also found out that the previous owner had put the wrong kind of power steering fluid in. Starting about 2 weeks ago, the car started making a squeaking or squealing noise. There would be no squeaking when I started the car, but then it would start when I turned. It is only audible when the engine is idling, and I'm not sure if it is squealing at other times, too.
I figured it was probably one of the belts, probably the power steering belt. However, I checked it and it seemed to be tight enough and did not appear cracked or glazed. A friend of mine who knows much more about cars than I do also checked the power steering, alternator, and A/C compressor pumps for me, and he said they seemed fine. About the same time the squeaking started, I noticed the car seemed to be burning a lot more fuel than usual. I have filled up the gas tank twice since then. Typically, throughout this winter, the car has gotten 33-36 miles per gallon. But on the last tank, it only got 25 MPG and it got 29 MPG on the tank before that. There has been no change in my driving habits to explain this. The engine also sounds slightly rough when it is idling, almost like a diesel engine, but no louder than the car usually sounds. My friend who checked the belts listened to it when it was idling, and he thought he heard a slight knocking sound, which I heard too.
I noticed no decline in performance: the car accelerates just as quickly as ever, and performs the way it always has. The power steering seems to function just fine, despite the squeaking. I thought that perhaps there was something wrong with the timing belt, and that might explain both the squeaking and the increased fuel burn. But I looked online at a few websites, and it sounds like timing belts usually don't show any symptoms when they are wearing out, they usually just fail without much warning. Also, when I bought the car, the previous owner said the timing belt was replaced at around 90K, so it should be fine for a while. I am at a loss as to what might be wrong with the car. I wonder if the squeaking and the increased fuel burn are caused by the same problem, or if there might be separate problems causing each.
My 2002 lincoln LS run rough after warm up. Check engine light code is EGR , replaced EGR.
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After the plug and cop change the truck will run rough after it is warmed up. I changed back to the old COPs and it runs the same.
First I replaced the MAF sensor after finding many posts on here about it. No change.
I read a bunch of posts on oil causing the problem so I used 10-30w and nothing changed.
I searched for a vacuum leak with carb cleaner and couldn't find one. I removed, cleaned and reinstalled the throttle body.
When I did the plug change I disconnected the PCM without disconnecting the battery. Would this cause this type of problem?
I think this is about all the stuff I found to try in the threads that came up through searching.
I have a 2013 Hyundai Azera with the 3L V6. I only use 93 octane gas (as recommended) and only use either Shell or Chevron. Each day, when I get in the car for the first time, I can count on it running rough and having inconsistent performance and some minor sputtering or misfiring (don't know the difference) until the car gets warm. Once it gets warm, all is well. It has 24k miles. Any thoughts on what may be the root cause? Should I change the fuel filter so soon? Does that matter being it gets better when it warms up?I change the oil religiously whenever the computer in the car tells me it is time to do so and use Mobil 1 synthetic.
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how much fuel is consumed during a typical warm-up period for the Gen III? I realize there are variables related to ambient temperature etc..
my interest is to get a baseline consumption figure to compare warm-up saving devices/techniques against.
4 cyldr has very rough idle along with engine shake. Just started doing this. I replaced the cam sensor a few months ago and all has been well. But it started running so rough, almost like it jumped time. I was disconnecting sensors to see if motor idle changed and when I unplugged mass air flow sensor on air filter intake tube, nothing changed. Could this cause such a dramatic idle ?
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