Volvo :: 95 / 96 850 2.0 T5 Engine Lose Power During Full Acceleration And At Higher Revs
May 21, 2015
In the past month for 3 times I've experienced problems with engine start (starter turned properly and I could hear fuel pump working). Yesterday however, I noticed that during full acceleration - at higher revs, engine suddenly loses a bit of power and at the same time you can feel kind of rattling or vibration in the engine. After letting off the gas pedal everything goes back to normal ... Besides, everything seems to be normal. Lambda control light does not light up indicating any errors. However I get a faulty knock sensor code 1-4-3. To my intuition the problem is with the ignition (but approx. 2 years ago I replaced distributor cap + rotor and the plugs + ignition wires were replaced about 3 years ago) or the amount of fuel in the mixture, but that could be caused by many things.
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My GTI is the first FWD car I've had since 1985, so the issue that I'm having may be just me adapting to a front drive platform. Here's what's happening: when I nail the throttle in 3rd or 4th gear, on or about 4K rpm or above, the car feels as if it's hesitating slightly as the revs climb.
It accelerates fiercely (I have the JB1, and I had the Neuspeed Power Module before it, and it's reacted the same way with each mod), and it's almost as if the front end of the car is lifting and struggling for traction (although the traction control light doesn't come on).
Is what I'm experiencing normal FWD behavior? Is it the beginning of torque steer? I only notice this at full throttle--not noticeable at all at partial throttle. Also, it doesn't happen consistently. My car is a performance package manual.
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I only use AC in the summer around here, not year 'round. When I turn it on, I notice that the engine revs higher when turning the compressor, which cycles on and off. It's only a few hundred RPM, but it's quite noticeable and will make the truck surge forward when sitting at a traffic light. The dealer says this is how the AC works on a GX, so I've gotten used to it.
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My fiance is having issues with her car. It seems under acceleration to buck and lose power. I know more about 1.8t's but hers is the v6.
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I have Toyota 4runner 1996 4 cylinder. it was running good (from time to time I would lose power for 2 to 10 second than it go back to normal acceleration). I had the check engine light on for almost 8 month. last week I took the car to mechanic shop for diagnosis. the mechanic changed the spark plugs and after that the engine lost power. the car cannot go over 30 or 35 mile per hour. He changed the spark plugs and put different ones, same thing he put the old ones back same problem, he changed the wires, the fuel filter, air filter, the distributor and rotor, but still the same problem. the problem is that the check engine light is off now and there no codes.
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What's going on with my '93 240. When I first go out to start my car in the morning, it starts up fine. After that, however, is when the trouble begins. If it's hot out, or if I've driven the car that day, there's a 50% I'll have trouble keeping the engine running. The engine will run rich, and chugs on startup, eventually stalling out after a few revolutions. During this time, the engine revs low, don't have a tac so I can't say how low, but definitely below idle.
If hold the accelerator to increase the RPM, the engine will run fine, but once I let off the gas, chances are it will stall out again. Eventually, after doing this a few times, something seems to catch the car as it begins to stall again, as in, just before the car is about to stall, the idle speed kicks up to normal. After that, the car runs fine.
I've had a code for the MAF for a long time. I tested the resistance across the meter, and it indicates the wire is still good. Even at that, I've replaced the MAF, but nothing has changed. Still have the same problem. What could be causing this?
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I got a brand new turbo installed on my 99 Passat 1.8T... i took it out of the shop and everything worked fine for a few kms (the turbo was installed by a mechanic and i was there for the installation, i made sure he connected all the hoses ext...). after some time I am driving on the highway with around 110 and i decide to pass someone so i drop it down to 3rd gear, the revs go up to 3500 and the car started choking up(exactly the same thing as if the Air Mass Flow sensor was disconnected or removed) the problem continued. I disconnected the battery to restart the computer, also i have a brand new air filter and a brand new gas filter. If the new turbo is pushing more boost could it be that the car is not getting enough air through the regular intake?
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So I get in my car, start it up. as i drive away i notice a whining noise, as the revs get higher the noise gets louder. so i push the clutch in and rev it. Got that same whining noise, gets louder as the rev goes higher etc... so i turn the car off come back a little while later and its still making that noise. It doesn't really sound like a belt noise,
It was the power steering fluid, thought it was low. I haven't checked that yet...
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I am experiencing a weird noise coming from my 1.8T AWP engine. Its kind of a buzzing, and it gets louder with higher revs. Unfortunately its hard to hear while driving as I have an exhaust on it, but in a confined space you can hear it clearly.
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97 ranger 2.3l ... I have a problem where I'm losing full power (like cutting out) while under acceleration it's only for a split second almost like a hesitation. I got p1443 for the first time today and I was looking at my fuel trims and I noticed my long term FT is at 99.2% and never changes while my short term goes between negative and positive no more than 6%positive and like -4% I assume this is normal for short term but I really am just guessing on that. I am thinking perhaps I need a new fuel pump...but maybe I'm wrong...truck has a new fuel filter and a new evap purge solenoid...
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I don't like the way my transmission switches gears, is it possible to make the car change gears with 0.5 revs more then what it is right now... I feel like Hyundai only considered gas mileage for this car and didn't even think about the stress on transmission and engine...
I want the car to switch gears on higher revs then it is right now..
2012 Accent GS hatchback... Automatic transmission
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I have a 2009 Hyundai Accent 4-door 1.4L auto, 123,000 miles.
Before you ask: The high mileage is because it's used for a newspaper route. We(as in, myself and my father) take great efforts to keep it in as good a shape as possible given the amount of stress this puts on it - one minor deer impact aside, I think we've done a good job.
Recently(read: a week ago), we replaced the purge flow valve due to it causing stalls and difficulty starting after refueling. After a week of apparently fine operation, as I was nearing completion of the route, a very clear cylinder misfire began. Not the worst misfire I've ever heard - the car barely seemed to struggle on initial acceleration(except in reverse, which made me slightly concerned I wasn't feeling an engine issue, but a transmission issue), and only got really shaky at higher revs.
We have an OBD-II reader at home, so when I returned I plugged it and discovered not one, but TWO error codes: P0497 -low purge flow- and P0301 -Cylinder 1 misfire- with the reader listing them in that order.
Looking up information on these two being connected has turned up little support - I've only learned that either one can be cause and effect. Needless to say given timing I strongly believe that it is highly likely that we either made a mistake installing the new valve, or that the new valve was bad from the get-go.
We'll be checking the spark plugs as soon as we are able(I am about to go to sleep and my dad has work - we tag team automotive repairs since two sets of eyes and two brains can figure things out better and an extra set of hands is always good to have ready even if only one set can actually do the job), but even if the problem isn't the spark plugs, it doesn't automatically mean it's the purge valve, either - at least as I understand things.
So with the background out of the way, my questions are thus:
1) Is the spark plugs don't fix anything, what is the quickest way to figure out which error is cause and which error is effect?
2) Are there any serious risks to continuing to run the car in this state if a fix cannot be made immediately? (being able to borrow another car is possible, but problematic - need to stick with this car if safely doable)
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Ok my R is all stock 59k miles. This morning I was getting on the freeway and some AMG hold was on my ass so I floored it and accidentally hit the rev limiter. After that It smelt almost like burnt rubber in the car. I rolled the windows down and the smell went away in about ten min. I didn't lose any power and no check engine light came on. When I got to work I got out and looked under, no fluids leaking. But the smell was still there. I'm gonna look at it more after I get home from work.
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I own a 2009 Nissan Sentra with a CVT transmission. It has about 65,000 miles. During the warmer months, my wife and I have both experienced times while driving (usually for more than 2 hours) when the engine would lose power while going up a hill. After doing some reading we learned that this was common in Sentra and Rogue models with CVT transmissions. Apparently the transmission fluid heats up, boils, and foams. The foam triggers a sensor that cuts power to the engine. Once the fluid's temperature decreases the car performs as it should.
We have visited the dealership and even have a case number with Nissan consumer affairs. After many appointments and phone calls, the only action taken was decreasing the level of transmission fluid. This action was approved by Nissan. This has worked a little but the issue still occasionally persists. For the record, neither my wife nor I are expecting this to drive like a race car. We'd just like it work correctly. I know Nissan has extended the warranty on this and many CVT transmissions.
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I had a dead battery on my '97 power stroke Ford F250. I realize now that when I was jumping it (successfully) I clipped the (black) ground cable to the alternator itself! Doy. The alternator is definitely dead now as I lose power after a few minutes of running the engine. My question is: did I blow a simple fuse or do I need to replace the whole alternator? How likely is it that I did further damage? I ask because I'm contemplating replacing the alternator myself. But maybe it would be wiser to get a tow to the mechanic.
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My Snapper mower has a 11.5 hp B&S OHV engine that was filled with 5W20 oil for storage over the winter to enable me to start it occasionally in the cold weather to keep the fuel system from gumming up. Today I fired it up and decided to cut the yard but after 10 minutes the engine began to smoke and lose power, eventually stalling. The oil level was OK and after leaving it to cool a few minutes I checked the plug and it was loaded with oil so I changed it and the engine started but smoked. I drove it to my shop and adjusted the valves and drained the oil which ran out like water. After filling with HD 30 oil it started on the first pull and I finished mowing the yard, about half an hour, with no problem.
The light oil was apparently too thin for the air cooled engine and B&S does specify 30 weight when the temperature is above 40*. Hopefully there was no damage done to the engine. I will be much more careful about the oil viscosity from now on.
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I have a 2004 saturn vue. It is a 5 speed standard with a 4 cylinder engine. Now that I have that posted here is my problem. I have normal acceleration up until I hit 3000 rpms. At that point my low engine power light comes on and I lose acceleration. To explain that better, if I take my foot off the gas pedal completely and then try accelerate again nothing happens. My engine stays on but I do not have any reaction when I push on the gas pedal. When I run the computer codes it says it could be my accelerator pedal sensor or my ecm. I do not want to have to replace the ecm if I have to due to how expensive it is.
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My 2003 ford expedition with the 4.6 v8 engine is having an issue i cant seem to pin point. The lights will get bright and then dim and the engine will die and I will lose power steering and brakes, it will start back up when i put it in park. Also while I am driving randomly the rpms will shoot up to between 3 and 4,000 rpms and go back down. I have seen a video on youtube that says the fuse box in this model is very likely to short out and ruin the circuit board. Mainly looking for any experience any of you have with a issue like this. The check engine light is on, Showing two codes for running too lean and a code for Idle air control valve. Mileage is 239,000 ...
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My surging/running down issue has returned on my '86 2.3l Ranger. I thought it was electrical, when things improved with the new ignition switch, but lately it's hard to get out of 2nd gear before the engine surges then starts to lose power. a poke of the gas pedal starts the who cycle over again. I pulled codes but it's hard to tell what the reader is saying either 33 and 34 or 334. The good thing is all the codes point to the EGR system. Looking for a diagnosis tree to determine if the valve is bad or the sensor is shot? They are both not cheap so I don't want to just throw parts at the problem.
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2007 Explorer Limited . The traction control light will start flashing and the engine will lose all power, it slows to 30-40 mph, then goes again and the light goes out. This is intermittent and seems to happen the most when the engine is cold. This morning it wouldn't go over 20 mph and finally warmed up and went well enough to get it home. There is no check engine light or codes saved. This is my wife's driver, and it completely stopped one day and threw a check engine light. She turned it off and restarted and the light went away and the car would go again. I've read Ford had bad throttle bodies, (TPS)...
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We have a 2001 E320 4-Matic. Recently, it has developed a serious problem. Every now and then, when I come to a stop (e.g., at a red light), the car would shake/vibrate significantly. Even more importantly, the car seems to lose acceleration suddenly and unpredictably (not necessarily correlated with vibration at the stop). The latter problem goes away "for the moment" by switching off the engine and then restarting it. The Check Engine light has come on as well. The codes that are diagnosed are P2001, P2003, P200F, P2082, P2050, P20151, P2055, and P2053.
While there are several issues with the car, I am most concerned now with the two issues I highlighted above - sudden loss of acceleration and the vibration while stopped (both happening unpredictably). I took the car to two mechanics. The two mechanics seem to sharply differ on how to resolve the "sudden and unpredictable loss of acceleration" issue. One mechanic (Mercedes dealer) attributes the problem to issues with EGR valve and claims replacing that will fix the problem. The other mechanic attributes the problem to the Catalytic Converter which he says is broken and is causing sudden loss of acceleration (and yes, there was a rattle some time ago). The second mechanic does not disagree that the EGR valve (and the secondary air injection system) has issues but he says it is the Catalytic Converter which is causing the core problem of sudden loss of acceleration (and yes, there was a rattle some time ago).
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