Chevrolet - 1500 :: 2009 - Noticed Irregular Fluctuation In Idle
Mar 23, 2014
I just bought a 2009 Chevy Silverado , have only had for a week and have noticed an irregular fluctuation in idle, also the transmission has lack of a better term jarred a few times and seems to downshift rough sometimes. The irregular idle seems to be worse when the ac is on, I can hear the compressor kick on and off alot. And just once I was driving and tried to accelerate and it didn't want to very much. Factory warranty is out and dealer didn't give option for extended warranty. They have agreed to look at it but aren't willing to do much other than clean injectors and throttle body.
View 8 Replies
Advertisement
My 1996 S10 2.2 liter pickup has been having some 'issues'. Truck has been kind to me over the years, but now is running a bit rough. It has an irreguler idle and continues to run this way through all speeds. The blinking code reads "cylinder 1 misfire". I did all the basics. I changed the plugs and wires, ignition coils and fuel filter. Here is where is gets tricky, after changing the fuel filter, it ran great again. Then it started to run rough again later that day. I thought I somehow clogged up the new filter, so I removed the new one for inspection. Realizing there was nothing wrong with it, I reinstalled. Truck ran great again. Went out to drive it to work a couple hours later and it started fine, then after about 10 seconds of running, it went back to the rough idle.
View 19 Replies
My 1995 chevy c1500 cuts out at idle or the moment the brakes are applied to shift into drive. I replaced the passenger wheel cylinder and bled the brakes and it ran fine for a few hours, then the idle problem stated again. I have check the map senor and a few other electronic component as my mechanic said the problem " might be electrical."
View 6 Replies
2004 1500 5.3 low oil pressure after using Lucas engine stop leak. No pressure at idle just below 40 when driving. Replace the sending unit and pressure improved for about a day. Just had a manual pressure gauge hooked up and it shows the same as cluster. No engine noise at all. I was informed that using Seafoam or another solvent could loosen up build up and cause damage. Trying to find out if using an engine flush machine may support. I am assuming that the cause of the low oil pressure is due to build up from using several qt of the stop leak over a four months. I am the only owner and I have always changed the oil according to schedule and have always used Valvoline synthetic.
View 19 Replies
I have a 97 Chevy K1500 truck that i have been having problem with starting. Sometimes it will start. When it does the idle is rough. When i put in in gear it almost acts like it will shut off. Then it comes back and it drives fine. If it shut it off it may or may not start. I had the distributor cap a rotor replaced. Then I replaced the spark plugs and wires. Still does not start. It seems like it is getting too much fuel. I pulled the fuel pump relay and the truck would start then die out. When i put the relay back in truck does not start. I am not sure what might be the next piece to look at. I was thinking the MAP sensor or the throttle position sensor. So far i have not had any codes come up.
View 4 Replies
After my truck sits overnight it starts immediately and goes to fast idle for a few seconds, then ithe idle starts dropping until it gets to approx. 400 RPM.If I drive off immediately it will correct itself in a short while, otherwise I need to baby the engine speed until it runs on its own - usually five minutes.I cleaned the MAF and performed a MAF tap test with no success.
View 3 Replies
I am having issues with my 2002 chevy cavalier.
The car occasionally surges forward while idle and revs up to 1500 rpm approximately occasionally when the air conditioner is on... if the brake is not applied I move forward.. the lurches are continuous every 3 seconds or so.
I am getting a code for an evap leak.. I have replaced the purge solenoid valve, gas cap, and checked all connections with no luck... slightly decreased gas mileage has occurred.
A little bit of a slick substance has been leaking from the car.. it has the consistency of water, but leaves a slight brown tinge on concrete.
View 3 Replies
can i adjust idle on car, seems to be running faster without using gas pedal.
View 2 Replies
I have a misfire in the 6 cylinder on my 98 Chevy c1500 5.7l 350 v8 2wd. I changed the spark plugs and wires, cap and rotor, and changed the spider injector i put the spider injector in from another engine I had. After doing all this the code still comes up. The truck runs fine and except it idles slight rough not bad at all and now it says I have a vacuum leak and while I'm driving you can feel the loss of power. I tried all the ways to do it like on YouTube. What is wrong with my truck?
View 10 Replies
My question is what could cause a high idle?I have a 95 Chevy pickup 4x4 with a 5.7... Recently the lower radiator hose fell came off the radiator, dumping the liquids all over the street. The motor shut down, and every time we went to start it there would be a loud whining/spinning noise. We thought that the motor seized, so we pulled the plugs, turned the motor by the crank bolt.Turned out that the starter went bad, the spindle and bendex werent catching on the flywheel.
After examining the flywheel teeth, and gapping the plugs to the recommended manufacture gap, (they werent when we pulled them), we got a new starter installed. It started right up! But it ran at a high idle, around 1500-2000 RPM. I did not have a chance to really let it warm up (it was cold and raining). Now there is a gray flexhose that is running from the air filter housing down to the exhaust manifold. If i remember correctly, it was not seated very well when I took it off. Could it be causing too much of a vacuum?
View 9 Replies
My 2009 Silverado 1500 with only 12,000 miles has begun intermittent display of all warning lights that are normally seen at start up. They stay on for 2-3 seconds and all gauges drop to -0-. When the warning lights go off, the gauges return to normal. It is not as prevalent after engine reaches normal operating temperature.
View 3 Replies
This is more of an annoyance than a threat to driveability (so far) but it has me and the mechanics I deal with stumped. 94 GMC 350 with about 175 thousand miles. Prior to my emissions test I cleaned and gapped the conventional plugs, inspected the cap and rotor and gently cleaned off a small amount of accumulated 'snow' on the contact points and put a couple of cans of Seafoam in the tank. I passed the test without issue but for some unknown reason the truck has developed an irregular stumble at idle especially when hot.
I replaced the plugs and the stumble became less noticeable but still there. Mechanic has verified no problem with cap and rotor, ignition wires, coil, PCV valve, coolant temp sensor but did discover a very small leak in the intake manifold gasket which has been remedied but with no effect on the stumble. I had the truck out for a two hour highway drive today at sustained speed of 70mph and it ran beautifully but soon as I came back into town and hit the first stop light I noticed the stumble plus the tail pipe is too sooty after that much hwy driving. There are no stored codes and the SEL has never come on.
View 5 Replies
I have a 2001 Volvo S60 T5 Turbo with 145K on it, lately when at a stop, in Drive, my idle fluctuates, dipping below 1K RPM where it normally is, fluctuating between 500-1K RPM. Note the spark plugs have nearly 100K on them, but otherwise, car runs great (besides lots of oddball suspension noises)
View 4 Replies
We have a 1997 Saturn. For the past few months, whenever we're at a stoplight it suddenly fluctuates in RPMs, giving it a rough idle (going from 1000 down to 500 or so for a second or two, before coming back up to normal). It appears to be temperature sensitive (i.e. the longer the car runs or the hotter the outside temp, the more often this occurs). I sprayed the throttle body connection and vacuum connections to attempt to find a potential vacuum leak, with no effect. We've already had the transmission replaced, and haven't been having any other idle issues besides this. What else might be causing it.
View 4 Replies
I have a 2009 Santa Fe Limited with the Infinity sound system.
Last night driving home there was a split-second power pop/fluctuation in my center console. The lights and sound turned off for a split-second. I didn't notice if this also happened with my driving console or exterior lighting system, but the wife seems to think that it was only the centre console.
View 5 Replies
On my '11 5.0L I've noticed at light to mid throttle if I get into 5 or 6 with the rpms down near 1k or so it will have a light but noticeable to me shudder type sensation. At first I thought maybe it was a converter lockup effect or possibly road noise but the more I drive the more I notice it. Very indistinct and mild with no check engine light and mileage was 17mpg mixed so I'm pretty convinced its not an engine shutter- but I have no experiencing dealing with these coyotes yet...
View 4 Replies
2009 Impala, 6 cyl., 32k miles, with the engine warm and running below 1000 rpm I only get cool air entering the cabin. As soon as I rev up to 1000 rpm and above heat enters the cabin. The coolant level was a little low and I added about 2 cups. I haven't driven it since adding the coolant but I doubt that is an issue. Since the day I bought this vehicle (at about 16k miles) I could detect a whine sound coming from the engine compartment at start up. This may have something to do with this problem, but until just recently the heater did work fine. The A/C works fine. Thinking maybe a water pump?
View 4 Replies
I have a 97 chevy and the only way to start it is to jump the starter relay, not sure if it is the key switch ot the nuetral saftey switch.
View 2 Replies
I have a 1997 Chevy C1500 with about 85k miles on it. I had the breaks checked and replaced over a year ago and this problem is pretty recent. When I got the brakes done I had the pads replaced on the front disks and I had the back drum pads and some brake part replaced that was inside the drum. Looked like a little hydraulic piston of sorts (sorry, not to up on my car lingo here lol)
My issue is my ABS light comes on from time to time for no apparent reason at all (at least that I notice). I can be just sitting at a stop light and I will notice it comes on, stays on, then randomly will go off. The car seems to break fine, especially at higher speeds (30-70mph). On occasion however at low speeds (5-15mph) when coming to a some what sudden stop my brakes seem to skip? Kind of feels like a grinding feeling. No gravel or slick road, just plane ol pavement. I think this is the ABS system but Ive only ever driven one other car with ABS breaks that the I believe the ABS system activated while stopping on ice and it felt the exact same.
I have not noticed if the light comes on during these low speed stops, as I am just now putting all these pieces of a puzzle together to figure out if something is really wrong with my ABS system or if its just a sensor or something.
View 3 Replies
I have a 1997 Chevy C1500 with about 85k miles on it. I had the breaks checked and replaced over a year ago and this problem is pretty recent. When I got the brakes done I had the pads replaced on the front disks and I had the back drum pads and some brake part replaced that was inside the drum. Looked like a little hydraulic piston of sorts...
My issue is my ABS light comes on from time to time for no apparent reason at all (at least that I notice). I can be just sitting at a stop light and I will notice it comes on, stays on, then randomly will go off. The car seems to break fine, especially at higher speeds (30-70mph). On occasion however at low speeds (5-15mph) when coming to a some what sudden stop my brakes seem to skip? Kind of feels like a grinding feeling. No gravel or slick road, just plane ol pavement. I think this is the ABS system but Ive only ever driven one other car with ABS breaks that the I believe the ABS system activated while stopping on ice and it felt the exact same.
I have not noticed if the light comes on during these low speed stops, as I am just now putting all these pieces of a puzzle together to figure out if something is really wrong with my ABS system or if its just a sensor or something.
I would like to have some knowledge or information in case I have to take it to a mechanic to have it looked at. The last people (Just Breaks) I took it to really tried to screw me over. After they worked on it the Emergency break light was on and his fix was to just "unplug" the sensor. I said Heck no! Fix it! after three bleeds it tripped the sensor off. So I am a bit hesitant to have them looked at after that experience.
View 4 Replies
Infrequently (once every couple weeks) my 2002 Suburban won't start. The starter seems to work properly as the engine tries to turn over and even seems to initially start for a fraction of a second but then dies. If I wait 10 to 30 minutes it will usually start without a problem. This problem does not seem to be related to outside temp, recent use or car position. After dealing with this occasionally inconvenient problem for months I took the car to a service shop and was told that if they could not reproduce the problem that trying to fix it would be a wild goose chase. When the problem occurred again I took it to another shop who kept the car for 3-4 days but was unable to reproduce the problem.
They suggested that there was a problem with the fuel pump but did not want to replace it unless they were sure that was the problem. I then spoke to the Chevy dealership shop who also said it was most likely the fuel pump. In my frustration dealing with this problem I took the car back to my local shop and ask them to replace the fuel pump ($800). Unfortunately, the intermittent problem has persisted and I'm not sure what to do next. I did have an after market remote ignition added a number of years ago and took it back to them to see if this could be related and they said no way. I have also wondered about the security system being a problem in that my rear hatch cargo door does not lock even though the other doors lock normally.
View 3 Replies
