BMW With Excessive Fuel Consumption - RPM Drops To 0 When Idling
Sep 12, 2013
I have an old (fourth generation before 2005) and low performance bmw 316 at its 40 000 km (its been in garage for some time after it's done 19 000, then i bought it, so everything rubbery is problematic), i feel like it burns more fuel then it should considering its performance , since its almost 20 sec. from .naught to 60 , it has a more noticeable engine braking compared to my 2005 passat 1.6 (almost twice as effective), and a higher fuel consumption, when i stop the engine when idling, the rpm needle (or whatever it is, not a native speaker) drops to 0 immediately like in a millisecond or so.. no inertia no nothing, oil and everything is regularly checked up but i think there is something deeper going on.
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I 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.
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Prius start consuming excessive engine oil.
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What is considered to be excessive oil consumption in regards to the TSB issued by Toyota for the 2.4L engine. Mine is using 2+ quarts per 5000 mile interval. It isn't leaking, so it has to be burning it somehow. It doesn't smoke visibly, but that is a lot of oil IMO (my Harley doesn't use nearly as much).
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Jeep Wrangler Owners excessive engine oil consumption [URL] .... Caused engine failure with my Jeep. Chrysler aware of problem. Local dealership stating Chrysler may not honor 100,000 mile warranty due to 1missed oil change.
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I bought this car off the showroom floor with about 1,200 miles on it. Since just past 70,000 miles or so, this car has been using more and more oil between changes. It now appears to be up to about 1 quart per thousand miles, maybe just 800 miles. I don't see any sign of a leak. There now are 201,000 miles on this engine. The V-tech solenoid had to be replaced about 30,000 miles back. Timing chain has never been replaced; nothing else major has been repaired. Last new PCV valve was put in about 30,000 miles back. It didn't seem to slow down oil consumption. This oil problem is the only problem with this car, except for the V-tec before, and some rattles. Otherwise it is as reliable as any car I've ever owned, and I've been around a while.
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?
Short of thousands of $ in repair costs, would a different type of oil reduce oil consumption? I read some people saying to stay away from synthetic (why would that matter?); some talk about oil treatments; one honda service manager says he puts good old STP in a high mileage, Honda, he owns. I tried that with this car, just one application, and I didn't notice any drop in consumption, but I drive a LOT, in all types of conditions, so I don't know that I gave it a real chance to work. In such an old engine, if I experiment with these, is there any chance of doing further damage to the engine? For that matter, would switching to 5W-30 or maybe a 10-weight, possibly slow down this excessive oil usage? I really don't want to buy a new car.
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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?
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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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I have a 2001 oldsmobile aurora 78,000 miles on original motor. the car misfires , backfires underhood,and excessive gas consumption, also sounds terrible at the rear exhaust. 3.5l motor issue stated after i filled up at cheap gas station.
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I'm in the market for a Prius and I read on carcomplaints that the 2010 model has excessive oil consumption issues. When I searched for more info about this issue, it seems that it occurs in the other model years as well. I'm wondering if I should avoid the 2010 model when looking for a used Prius, or if the trend on carcomplaints is incorrect and this issue is no worse on this model year than others. Did Toyota switch to a different piston ring in this year or are they all the same in the gen 3s?
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Actually I bought a used Corolla 2002 with 120K which seemed fine and the driving is fine. After I bought it, I just found out that the seller has removed the check engine light. When I read the ODB codes, It shows three codes of 0171, 0420, 0441. Also I have recently found out that the engine burns excessive amount of oil. (about a quarter per 200 miles). Actually the driving of the car is fine and as long as I add oil engine it seems fine.I think all of these errors might be just due to a small problem like a broken valve (since it's not high mileage). It seems that there is no vacuum leak from hoses as well.
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Had my '05 Prius in for its 100k service and TSB for water pump (the original one failed and was subsequently replaced under original warranty, so this one should be *better*, right?). All was well before the service, but now it seems to idle almost all the time, often at very high RPM, which it usually would do at full charge (which seems to be normal) but it was still a few bars from full. When starting up an hours after a long drive, the engine ran for a full five minutes in park and probably would have run the tank dry if I had enough patience. No heat or AC running, and the outdoor temp was 65. The engine will eventually shut off after a long period of driving and generally behave normally, but if I drive a stretch uphill, it will run and run (several minutes at least) even stopped in a parking lot.
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So, my 2005 Gen II Prius went for a scheduled service on Wednesday, 70k miles, Toyota main dealer. They called and said it needed new front brake pads and disks, I was surprised but gave the go ahead. There would occasionally have been a mild squealing sound from the brakes at very low speed so I accepted the pads might need replacing, I was surprised the disks needed replacing but it hard to argue about brakes, especially as I only have the car a year (I'm the second owner and it has a full Toyota service history). It had a "major" service, new spark plugs, new front brake pads and disks.
Since collecting it I've noticed that the engine seems to kick in more often and needs higher revs. The fuel consumption seems higher, normally mid 50's MPG (imperial gallon) now 35MPG. However it hasn't been driven many miles since its been serviced so its a low distance for calculating MPG. I've also noticed that the car seems to slow more quickly without applying the brakes, a regularly driven hill that I coast down at 48kph now only gives 35kph. Also, if I drive on a flat road for a mile or 2 and coast to a stop the front brake disks feel VERY hot, way too hot to touch, drivers side more so that passenger side.
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When I go out to do errands around town (I live right in town) I get horrendous gas mileage. Now, I understand gas mileage is high at the beginning of a trip, but for this long and this high and under these circumstances? I'm getting ABOVE 10l/100km when I have 80% charge available (for americans, that's disgustingly high MPG like, pick-up truck high), AND my foot is completely off the gas. Literally, coasting, or braking, and I'm still sucking up gas. What the heck?
Is this just because it takes a certain amount of time for the engine to run no matter what or something? I still don't see any reason for me to be eating up all that gas when my foot isn't even on the gas AND most importantly, I have charge available. Feels pointless for me to use my car for what I use it for 70% of the time, which is for quick errands around town at low speeds. Thought the prius was suppose to be a superstar for this kind of thing.
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What is the hourly fuel consumption for a Toyota Prius at idle? Purpose is keep cabin warm for 8 hours. Would this damage engine?
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My 4 cylinder Tacoma vibrates a lot when it is idling, especially sitting in "drive" at traffic lights. My regular mechanic has tried various things to remedy it but none has really worked. He suggested the valves may need to be adjusted. Is this plausible? Or is he off-base? And is it really expensive?
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Car started idling weird last night. Drops to about 500 then up to 1000, thrn down again. CEL has been on for over a month but has not affected driving. Engine shakes and doesn't sound normal. I was told by mechanic CEL was caused by a vacuum leak, but he didn't have the smoke machine to pinpoint the leak. That was over a month ago and I haven't had the chance to go back. What are the first things I could check for besides the vacuum leak?
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With the cold weather arriving I've recently noticed that when I have the heater on it does fine while I'm going down the road. However when I idle at an intersection the blower still works but the heat drops off.
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We have a sled dog team and purchased a 2012 GMC Savana, pulled out the seats then added wire dog kennels to transport them. This question involves air-conditioning since we don’t want hotdogs. Traveling on the highway during the summer in 90 degree plus weather the air conditioning works fine and cools to 35 degrees plus or minus out the vents (We have a thermometer on a vent). When we stop at a rest stop to potty the dogs we leave the engine running and the air conditioning on to keep them cool.
Almost immediately the air blowing from the vents starts rising to 70 degrees. My 2012 Ford Explorer does not have this issue and holds a steady cool temperature while at idle. Our dealer added dye found a leak and it was repaired so the system is topped off and the problem has persisted. Where to look next such as failed switches or compressor problems and what a dealer needs to do to make a repair. They feel the air conditioning is preforming well.
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I have a 2009 Santa fe 3.3L V6 (live Montreal, Canada), since the past week when I start it up, I've noticed that after 1 minute or so while the it is idling my rpm's drop from 1000 to about 650 for split second and it seems to want to stall. The same thing happens when driving for a a small distance when ever I have to make a stop my Santa fe rpm's drop (split second) so low it seems to want to stall. Could it be related to Throttle Sensor Position?
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Working on a 88 Ranger 2.9L 5-speed ext cab. The fuel pressure drops off fairly fast when turned off and I'm pretty sure that the check valve is bad. My question is, which pump has the check valve? It is a single mid tank set-up and has a pump in the tank and on the frame.
Pressure is fine while running. about 30psi @ idle and 40psi with no vacuum on the regulator. The pressure drops off within a couple of minutes which causes it to have to crank over for a bit to rebuild pressure and start.
It looks like the frame pump is readily available while the in take pump is special order. I just need to know which one has a check valve. I'm thinking the in tank pump, but I hate to waste money for the wrong pump.
Pressure drop rate
30 psi @ shut off
25 psi @ 1:05 min
20PSI @ 2:30 min
15psi @ 4:45 min
still dropping
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