Alero :: 99 - Hesitation Comes And Goes / Start Up Like It Has A Miss
Feb 3, 2005
I have had a problem with my 99 Alero for some time. It is a 4 cyl 2 door and there is a hesitation that comes and goes I have changed the plugs,fuel filter and air cleaner and will still do it from time to time. I have also tried different grades of gas and injector cleaner.
It seems to do it most when we are going up an incline just before it shifts when the motor is getting the most load on it but it will also do it when I start it up like it has a miss. As I said this comes and gos and no lights have come on so I'm not sure if it has stored codes.
Recently I have tried Outlaw super concentrated fuel injector cleaner and I have not had the problem for the last week or so?
View 9 Replies
Advertisement
My 01 alero 2.4l has some hesitation at takeoff, i have changed the plugs, boots, and fuel filter, and used fuel system cleaner. What could be causing this?
View 1 Replies
I have a 2000 Alero GLS V6 with 215K miles. The car has been experiencing intermittent throttle issues where it will hesitate slightly. Immediately after this hesitation the trac control trio of lights come on. I don't think this is the bearing as there is no wheel noise to accompany this. Also the trac control lights don't remain on when you start the car the next time. If this hesitation occurs when using the cruise the cruise control will be disengaged.
I also scanned the car and pulled a P0341 and P0440 code. (cam sensor and evap). These codes have existed for the last two yrs long before the throttle hesitation issue has cropped up so I don't think it is related.
View 1 Replies
Lately I have been having some trouble with 2002 Oldsmobile Alero v6. When the car is sitting in park I have noticed that the engine idles roughly, And when I try to drive it, the car hesitates on the acceleration every now and then. Also the emissions light (the orange one) will come on for awhile and then dissapear. At first I though it was dirty fuel injectors so I added some Fuel injector cleaner, but that has not fixed the problem. I was thinking the park plugs may need replacing?
View 1 Replies
My truck is developing a hesitation or a miss when accelerating. It only does it in the beginning of accelerating like when just starting off from a stop. Seems like its more noticeable with the more I get on it. If that makes any sense. When just lightly accelerating it doesn't do it, like going slow through town from light to light. But when I give it more is when I feel it. It seems like it only does it before the turbo kicks in and it puts out a little smoke too only before turbo kick in. After that it runs good with no noticeable miss or anything. WOT runs feel good after it clears up. Its just when first starting out with anymore that 1/4 throttle I can feel it.
View 14 Replies
I have a mysterious problem with the BMW 335d concerning the engine. The dealer detected a "miss" in the cylinders based on the check engine light, but there is no real drive problem. However, I have noticed a slight hesitation and noticeable reduction is fuel mileage. They don't really know what it is but suggested replacing the fuel injectors, in case that is the problem. And if not, maybe it needs cylinder head replacement. That seemed to be a rather expensive (for me) way to diagnose the problem. I can't believe that BMW somewhere has seen this problem before.
View 4 Replies
2010 f250 cc 5.4 145000 miles. I bought it last fall have not drove it a lot. When using the cruise control and a load is added grade or hill in the roadway. It jerks hesitates or miss then cleans up and runs fine. When using the accelerator it does not do this. No codes.... Thinking about changing the plugs.
View 5 Replies
I posted a while back about my 04 5.4 having an issue at idle. I did all the normal things like replace coil, spark plug, etc etc. No change to the issue. It still acts as though it's misfiring on a cylinder and I get codes P0306 and P0316. Finally took it to ford and had a diagnostic check ran. Everything on the top end was in working order. The tech even put a known working coil on 6 and nothing changed. I was told that it's either an intake or valve issue on that cylinder. But no definite answer to problem.
Fast forward to yesterday. I got a wild hair at lunch and went out and started truck. Pulled injector plug off of 6. No change to the way it was running. I did the same for 5, 7, 8, 1, and 2. All of which made a big difference in the way it ran. It was obviously misfiring with no fuel to cylinder. This gave me the idea to swap 5 and 6 when I got home to see if the issue followed the injector from 6. I did NOT. I pulled the plug on 5 and got the obvious change in the way it ran. So there is definitely something going on at cylinder 6 that I cannot figure out.
PCM, bad intake, bad valve? I'm not rich so a trip to ford for repair is gonna have to wait. Truck seems to run fine when driving except for slight hesitation during acceleration.
View 3 Replies
2003 F150 5.4 72852 miles
I have a Rough Idle & sometimes a hesitation or stumble on acceleration. I cleaned the MAF & IAC motor & Air & Fuel Filters are new. I got a 20890 scanner & ran test 6 53 as suggested in many posts by BlueGrass. Here are My results & what They Convert to.
1 00F5 .3675
2 0051 .1215
3 0000
4 0000
5 00A3 .2445
6 0000
7 0000
8 0000
I'm guessing the cop's are ok & probably need plugs? I was hoping to just swap a coil. Too cold to do plugs & truck won't fit in my garage.
View 3 Replies
I have a 85 bronco 2, but i have no luck with responses in Bronco 2 forum, so here goes. It is the 2.8 carb, manual trans with 109K miles. Idles really well some hesitation when taking off but really bad miss and not power under acceleration. KOEO codes are 31 and 84 CM code 18. I have plugged the vacuum line to the EGR and have noticed a dramatic difference. I have tried to rev the engine and check the vac line to the EGR but I do not feel any vacuum, and at idle the vac line on or off doesn't change things. Any recommendations to whether it is the Sensor or the valve itself and what gives with the 18 code. I am hoping to have timing checked by the weekend.
View 2 Replies
Had this truck a few years now, and it has always had a slight miss/hesitation and maybe a few codes. The timing chain skipped a tooth and the truck was down for about a year. I have 4 other trucks, so it wasn't a big deal. I finally had time to put a new oil pump, chains, guides, tensioners, phasers etc. The truck actually runs very well and quiet. But, now misses far more than I remember it doing.
When driving in town constant at 25-30 mph occasionally it will loose power for a brief moment(<1 second) and then be fine, the security light on the dash turns on for a few seconds. It drives at 55-65 just fine, unless I am going up a hill or something else increasing the load.
2004 5.4 3v 2wd
CEL-
P0453 (fuel tank pressure issue)
P0351 (ignition coil a primary/secondary circuit malfunction)
P0356 (ignition coil f primary/secondary circuit malfunction)
The coil packs are new, and I have injectors on order. Also found this thing on the back of the motor, it connects to the fuel rail on the drivers side. Where it should go. I looked on my other trucks. But my other 04-4wd has a box by the battery it connects to, but mine doesn't have any of that stuff. And my 08 doesn't have anything like this at all.
And a pix of the truck in question.
View 2 Replies
On the way home the instrument gauges start bouncing around, and then the car dies and won't restart. Battery is at 14v and jump charge with charger won't turn over. Passlock has been bypassed. Checked bypass and still intact.
View 3 Replies
I have a 2000 Olds Alero that will not start. Has spark, Fuel pressure is 55 and holds steady. Compression is low on some cylinders. It is a 3400 6 cyl. I changed the crank sensor, balancer, cam sensor, plugs, plug wires, and ignition module and coil packs.
View 3 Replies
The car cranks but doesn't start. I checked the fuel pump fuse & its OK. I sprayed carb cleaner in the intake & it started for about 2 seconds. What some of the possible causes?
View 5 Replies
2001 olds always has battery light on and past few days hard to start. Left wheel well sensor has gone out a couple of times the last 2 months. Just replaced radiator and now the car quickly overheats. So what is going on with my car?
View 2 Replies
I have a 2002 Alero with 124,000 miles and it's been giving me problems lately. Sometimes while I'm driving my car just shuts off. Radio still on and lights work, but the car just stops running. There are days where I can start my car with no problems and there are days where my vehicle doesn't start at all for days/weeks. I've taken my car to two different shops and they didn't find anything wrong with it but as soon as I got it back it started doing the same thing again. What is wrong with this car or what I need to do?
View 11 Replies
I am writing this about my fiances 2000 Oldsmobile Alero 3.4 liter. I live in MN so we see our fair share of cold weather. After her car has sat over night it will not start in the morning when the temp is below 32F or so. It started happening at the end of last winter and then it got warmer out and the car became normal...which is hard to figure out the issue when you cant verify the problem when you want to. Anyways we just had one of our first pretty cold nights and we went out to start her car and it barely started.
I have suspected it to be a fuel issue because while trying to start it if I hold the gas pedal in it will start to backfire lately and just acts like it is flooded. This last summer I looked over some things and found that the Fuel Pressure Regulator was leaking into the vacuum line which would go into the intake manifold and flood the car. So I replaced that convinced that it would solve the issue. It didn't. I also found that the PCV valve was stuck so I replaced that. Last winter I dumped in a bottle of gasoline de-icer or whatever that stuff is called thinking maybe she got some bad gas and her lines were freezing. That didnt change anything.
When the car wont start I can literally crank until the battery is dead (newer battery in the car) with no luck. I have had to be jumping it and cranking it over for a good hour to get it to start. Not cranking straight time obviously. But about an hour worth of time before it starts. And at that time i am thinking it starts just because of the air temp going up in that amount of time or something... I don't know. I am not quite ready to bring the car into the shop because I know it will need to stay there for a few days to be able to get the right conditions for them to verify the problem. My fiance and me have very busy schedules between both working full time and going to school full time. So to be without a car for a few times isn't an option.
View 6 Replies
I have a 99 Alero that wont start. I have had 3 people look at it and they don't seem to understand what's wrong with it. I was told to replace the ignition switch and to also get a new battery , which I did. It still wont start. I go to turn my key and it does absolutely nothing. Makes no noise , nothing. When I have it in the on position all my lights begin to flicker including my headlights. They also get very dim and it makes a fast clicking noise coming from the fuse box under my hood. Someone told me that my security system needs to be reset and to put it in the on position for 10 mins , but nothing happened.
View 2 Replies
I just installed an aftermarket stereo in my 2001 Alero. I did not use a wiring harness, but I just cut the old harness out. (probably a bad idea!) I did NOT disconnect the battery when I installed it.
1. I did not know where to put the radio ignition wire for the stereo (the ACC wire) (it was orange in my case). It looks like this car does not have one? I ended up just plugging the radio's ignition wire into the constant hot so the radio is always on.
2. After hooking everything up, the car does not start, it turns over for about 2 seconds, then it quits. Also, the instrument panel lights are not coming on. Everything else seems to work OK, interior lights, etc. I checked the fuses IPC/HVAC BATT and IPC/BFC ACC and they are not blown. My guess is that I did not wire the ACC part correctly...
What did I do wrong? I hope it isn't some complicated anti-theft mechanism.
View 2 Replies
For the past few months security light of my 2003 Alero keeps on activating preventing the engine to start or it doesn't even crank.
I always do the reset technique..."Turn ON the engine key for about 20 minutes and wait till the flashing security light become solid before starting the engine." Today when I started the car the security light comes ON and stays on for my whole 50 Kilometers travel. When I reached my destination,I tried to turn ON and OFF the engine waiting for my luck to have the solid security light to come OFF,but no luck.
Will this problem have any effect on the performance of the car? Will the car stall while I'm on the road?
View 11 Replies
My 2000 alero was WAY low on oil so I added a quart then drove for about 45 mins at 40 mph the car seemed fine. the following morning when I went to start it the car turned over but would not start when it finally started the engine knocks and it is putting out a lot of white exhaust. obviously I need to see a mechanic but what might be wrong. my neighbor said one of the cylinders isn't doing what ever it is supposed to do he said it passed a compression test but I don't know what that means...
View 3 Replies
