Pontiac - G5 :: 2009 - RPM Drops And Won't Accelerate On Highway When Low On Gas
Jul 29, 2015
I took my car in to a GM dealer and they replaced the fuel tank due to a leak. The cost was under covered under a special recall via GM. Now when the car is low on gas .. (Say about 50-60 miles left on a tank, or lesss) and I'm on the highway the car will not accelerate. When I try to speed up the RPM's drop and it seems like the engine isn't getting gas? almost like i'm running out of gas. I can still drive on residential streets going up to 40-45 mph but when i get on the highway it won't continuously drops and won't let me get up to speed.
Brought it back in , they replaced the fuel sensor... but that still is not fixing the problem. Below is link to a video of what it does.
Notice the RPM dropping..the whole time im trying to accelerate and pressing down on the gas pedal [URL] ....
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Was driving on the highway and all of a sudden my mph gauge just drops and my car slows down. This is the first time it happened and it didn't do it again after I got off the highway. Other things it has been doing: eating gas, shifting hard, and doesn't want to get up to speed. Not sure if they are related to this new problem or not.
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I have toyota camry 2009. I have almost no issues besides when I'm trying accelerate to getting on highway and tap on acceleration pedal sometimes it takes up to 5 sec to start accelerate:as soon your tap on pedal , it kind of thinking for 2-3 sec then goes to lower gear and only then start accelerate. Is it normal behavior for the toyota's car? I heard toyota's not really maneuverable cars or it just mine like this? I'm worry in traffic even overtake cars in traffic,otherwise can be accident.
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I have a 2001 Pontiac Montana van, when i drive i feel like there is just not enough power there. Most of the time when i hit 30mph the engine drops in power, hard to explain so I will try my best. I get in turn the key starts right up with out any hesitation what's so ever! I leave for work, while driving when I come to a stop sign and stop and take off its gets sluggish so while my speedometer is going up my movement is not changing as it should so needless to say I have to do 80 85 mph just to keep up with the average moving can at 70mph.
Once in a while I will give it some gas and let go of it and it would back fire a little not sure why. Recently I had new head gaskets put on cause temperature was not staying where it was suppose to be, they smooth out the headers and did a tune up, not sure about the timing, New fluids, once in awhile the temp would climb but that cause of the fans. Took it to AutoZone they did a obd code check came back with O2 senser and nothing else, so if I replace this will it bring my van back to normal running operation? And would it be anything I could check to rule out?
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1999 Ford E350 Triton V8 ... I'm having an issue with battery voltage, and it only happens once in a while.
Sometimes, while on the highway, my voltage will drop suddenly, the battery light flickers then after a couple seconds... ding! The voltmeter jumps back up to it's normal operating voltage.
It may only happen once, or maybe 3 times in a row, or never. I cannot get it to reproduce.
I had the battery checked, that's fine. I'm doubting the alternator is the issue. What other factors could I consider?
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My van just started to have this issue today with jerking real hard like its dropping a couple of gears while going between 50-60mph. It is a 2000 with the flex fuel 3.3L 4 speed auto.When this happens the spedo will go from 55mph to 40 instantly while keeping a steady speed and it feels like the tranny is going to rip right out. This will happen every 5 to 10 min but go back to normal driving after 3 sec and has not popped any codes. It runs like a top and all fluids are at the correct levels. I have to commute 50 miles a day to work so i really need to figure this out!!!
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This happens to me again on a very hot day. The symptom is: all of sudden, the brake pedal becomes stiff. I mean I can only depress down the pedal just a little bit. Then when I want to accelerate, the engine works very hard and speed picks up very slowly. RPM will shoot to 3000. When I remove my foot from the gas pedal, the speed drops very fast. The car slows down much sooner than usual. So my feeling is the brake is dragging the car. The dealer cannot duplicate the problem during short test drive. So what can be wrong? The brake booster was replaced a few months ago. Is it possible it provides too much boost?
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my 1990 Nissan 300zx with 136,000 miles often surges at highway speeds for several seconds then drops back down to normal. the surge is usually 1000 rpm. does not happen if not in overdrive, and will not happen unless having been driving for 15 minutes or so. also seems to occur more on hot days (80 degree +) than on cool days. mechanic has looked at this several times but not yet able to determine why.
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My 2000 Pontiac Montana squeaks while accelerating. There is about 55,000 miles on it. At first I thought it was a belt but it would squeak the whole time if so. It only squeaks (like a mouse), every time accelerating.
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I have a 1999 Pontiac Montana that has recently started whining when I accelerate. It stops after I take my foot off the gas pedal. It usually takes about 15 minutes of driving before the whining starts. It started about 4 months ago and has recently become louder.
Van has 85K miles.
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I have a 2009 Pontiac Vibe GT with about 255,000 miles. Over the last several months I've noticed a rattling noise coming from the right front quadrant of the car when driving at highway speeds (60 MPH and up). I also notice that it seems to diminish and/or go away entirely when I drive in the rain. I took it to the dealer and they said I need a new right front wheel bearing/hub.
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I drive a 2003 Pontiac Vibe GT (6 speed Manual) and I have noticed that when im in 6th gear going highway speeds, I have an RPM of about 3K. For this model I feel this value is high and im worried about engine wear and fuel economy. I'm not sure about the other gears, but from my knowledge of other cars in the same weight category, less horsepower and 4-speed automatic gearbox, my car should not have such high RPM.
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My '01 Aztek has a very odd shimmy. It only happens when turning right, at highway speeds, and when accelerating. Not when turning left, and not while just 'coasting'. Only when accelerating.
The mechanic replaced a tie rod end, and that seemed to fix things for a few hundred miles. But now it's back and is happening at lower speeds.
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My daughter recently had me go for a ride in her car. 96 grand am 4 cyl. The car at highway speeds while making left turn the engine rpm raises. like the transmission is slipping or something. It only does it in a left hand turn above 55 mph. If you let off the gas pedal and the reapply it is normal until you steer into the turn again. only way to get it to not do it is to slow down. What would this be. transmission, wheel bearings, cv joints?
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Well today I was happy go lucky on my way to work everything was going fine then all of a sudden this car in front of me slows down. Okay then I go to speed back up and my car was still crunk but I lose power I could not accelerate at all. So I had to coast to the side of the road and I put the car in park to see if it will allow me to accelerate in a different gear and when I do that.
The car shuts off then I go to crank it back up the first time and I got nothing then I wait a couple of seconds then try it again. It cranks up but still cant accelerate until I raise the engine then I can finally move. I was able to do about 65 mph to get to work but this happened two more times before I got back home that night. The car is a 2000 and has 220,000 miles on it.
I took the car to a part store to see why the service engine light was on. They told me it was a bad or faulty EGR valve but this was the first time the service engine light has flashed before.
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Just got my H&R's put on this week and it felt GREAT! But today as I was driving on the highway (stop and go) then road began to clear up, I felt a tremble (Shimmy) coming from the front of the car. I pulled over and checked to see if wheel lugs were safely secured and they were also check to see if there was any play on the top of the front shocks and they were ok I don't feel it in the steering wheel, I only feel it coming from the front. This has only happened once in the past but only when the car was parked with the ebrake on, but it was a very subtle tremble, I was wondering if it may be a motor mount that is either worn out or loose and or it will need a alignment given that it wasn't done after the suspension got put on.......
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Alright, car's overheating, but generally not at under ~55mph or so. When I hit the highway and accelerate, the thermostat climbs and hovers 3/4s of the way to red. But only sometimes. Sometimes, often when I'm going down a hill, it will swings down to normal. Once it's gotten hot, if I take it off the highway and am idling or driving in the 15-40mph range, the temp gauge will spike. But only sometimes. Sometimes I'll hear the fans kick in while it's idling/overheating. The temperature will go back to normal, and then rise again and stay there or spike (seemingly randomly). It's never reached all the way to the red, but it toes the line. And I take the darn thing into the shop and it refuses to overheat.
I've taken the radiator reservoir out and there seems to be green fluid (antifreeze/coolant?) in the water (have flushed it repeatedly)...and over the course of several weeks, the water level itself will go down. Both fans and the thermostat have been replaced in the last 6 months. Additionally, the timing belt and serpentine belt have been replaced within 5 months, as have affected pistons.((S/N--RPMs are really....low? ~2500 @ 75mph? but don't seem to correlate w/temperature. would they effect it?)
I took it into my shop and they said "we ran all the tests and couldn't find anything wrong." Cool? I'm at a loss..
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One day, I was on the highway and my Pontiac's speed started dropping. I looked at the temperature gauge, and the temperature was really high. I flushed the coolant system, and changed the gasket. Also the mechanic said that the oil might be leaking after they changed the oil. I paid like $700 for something that has nothing to do with the problem (I paid for a spark plug, ignition wires, fuel filter, and an oxygen sensor). After they changed the oil, oil started leaking all over my driveway, which didn't happen before. It also looked like coolant was leaking out. None of this happened before I got my oil changed with these guys.
After I changed the gasket, the car was running smoothly. But today, the same thing happened again, and I don't know if it's the thermostat, or water pump, or oil leaking, or coolant. The mechanic always suggests to fix something that doesn't have to do with the problem. I don't have much money on hand, so I need to only fix what has to do with the temperature rising, and I need my car to run.
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I have Acura 1996 3.2 and its a great car but about 2 months ago the Check engine light is on and when i try to accelerate on highway or just on high speed it wont go in the next gear at the moment but when I am gonna press the pedal harder suddenly it will accelerate in a second. Also when I am standing on the traffic light the dashboard starts shaking and its a feeling like a car is going to turn off. Its an automatic. And this happens more frequently when the tank is full.
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I just purchased a used 2006 package 3 with 66500 miles on it. Drove it to work today and the car started sputtering/shuddering when i was accelerating onto the highway. The check engine line came on so I took it to the dealership. Turns out it was a bad sensor.
When they fixed the bad sensor, the mechanic told me that its normal to feel a slight stuttering when the gas engine kicks in or off which seems to be confirmed by other members here.
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I got my 2005 jetta gli used with about 41000 mi on it. Ever since i've had it, when i accelerate on the highway at 50 mph or faster, the car almost feels bouncy throughout, what that is.
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