Silverado :: 2001 2500HD 8.1L Engine Idling When Truck Is In Gear
Feb 6, 2013
I have a 2001 2500HD P/U with the 8.1L V8. I have owned the truck for ~5yrs and used it with everything towing. For about the last three years, I have noticed that when the truck is in gear (Either Rev. or Drive) the engine idle almost acts like it is missing. It doesn't do this at higher RPM's (say over 1K) while driving.
Last spring I did a tune up (Plugs and wires) and a few of the plugs had quite a bit of build up so I figured that was what was causing the issue. For about 1wk after the tune up it seemed to clear things up (at least I didn't notice it), but then resurfaced.
My question is: should the "Coil" parts that feed each spark plug need replacing, or could they cause this symptom? The ignition system on this truck is a bit different that what I am used to seeing, so I am not sure where I should start looking for the problem.
Also, there are no error codes being thrown.
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My crew cab 2001 has 75K miles and is well maintained and garaged. Every once in a while the engine will just quit while driving just as if the key was turned to neutral all dash indicators light up but just quits running. Turn the key to start and hear the engine cranking but won't start. Sometime in park it just cranks however I noticed that when I move the shift lever into neutral and depress the brake it will crank and start sometimes.
I don't believe it's a fuel problem. Could it be a loose wire in the column?
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I am having a bad time with my 2006 2500HD 4x4 with the 6.0. First the battery was beginning to act like it was running down, getting weaker and weaker every time I started up truck. So finally truck died at the gas pump. I pulled battery (optima red top), and took it over to NAPA to test. Battery tested fine on top posts, but was acting funny with the side posts.
So, I purchased a new Redtop, and installed and and clunk, truck wont turn over! So, back to Napa to buy a new starter, install starter, hook up battery and now the sucker turns over great but will not start at all. Truck threw 6 codes: P0335, C0035, U1026, U1041, C0040, C0055.
Wiring all looks fine, battery looks new, and I have changed nothing but battery and starter.
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I have been trying to self diagnose an issue with my pick up for a while now. I have an 01 Silverado 2500HD 6.0 that shifts really hard into all gears. I was told it was the transmission going out, so we replaced the transmission with a rebuilt one and it did nothing for the shifting issues. We then had the transfer case rebuilt which also did nothing for our problems. My father who has some general mechanic knowledge is certain that the free floating rear end is not turning with the correct timing for the transmission shifting. No check engine lights come on at all during these issues. When I took it to a mechanic he told me I needed a new transmission and blew me off when I told him it was just replaced.
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01 2500hd, 8.1L allison auto, push button 4x4. wont lock in until its about 2000 rpm then will release just fine. Just not sure of where to start looking for the problem. Actuator on the axle or in the transfer case or something else?
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My truck is an 2003 2500hd with the 6l engine and 89k miles. From time to time I'm getting message "reduced engine power". Usually at the morning after 10-15 minutes after starting. I have to pull over, shut it off, wait few seconds then restart it. The ses light goes off usually by end of the day ( or after few hours ). When scanned by chevy tech showing code P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance. I have new battery with new main cable. TAC Module was cleaned.
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I picked up a very clean 2008 Silverado 2500 HD. W/60K miles. The vehicle has been very well cared for as I know the orignal owner. I have zero complaints with the truck other than an annoying front end clunking. Its very reminiscent to the intermediate shaft issues of my 2003 2500HD.
Basically when hitting very small road imperfections, I can feel/hear a clunking in the front suspension. I can also duplicate the issue by rocking the truck left to right with the steering wheel while going 20-30MPH. I figured, stabilizer links. I put the truck up in the air, & can't find a thing wrong. Links are tight as well as the ball joints & tie rod ends. Were these trucks know for a common clunk like this.
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I have a 98 Chevy truck with a 4L60E. It has no second gear. I was sitting in park for about 10 minutes with the engine running, then put it in drive and it never shifted into second. It felt like it went straight to 3rd. I played with it manually until I figured out I had reverse, 1st, 3rd, 4th and torque converter lockup, just no second gear. My acceleration rate was medium and when I reach about 27-28 mph it would shift from 1st into 3rd. It has 230K on it so I rebuilt it with all the typical parts - frictions, steels, band, sun shell etc., still no second. I then pulled the pan back off and replaced the spacer plate and put in a shift kit. While I had it down I put a corvette servo in and did an air check. It worked fine. I could feel the band tighten.
Both the 1-2 and 2-3 solenoids checked good at 23 ohms. I swapped their positions to see if it would make a difference. I also checked to make sure the 1-2 accumulator piston wasn't stuck in its bore, the spring was new from the shift kit. It was fine. Put it back together...still no second gear. When I originally pulled the pan off for the rebuild, the pan was free of any debris and was very clean. I then drove it a couple of miles to a local transmission shop. They put their scan tool on it and drove it around the block. There were no codes and the ECM was calling for second gear. It doesn't sound mechanical since almost all the parts have been replaced, rebuilt or inspected that affect the 1-2 shift. It sounds electrical. Is there anything I have missed?
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I drive a 91 Silverado, v6, standard transmission.
While I was driving my truck seemed to slip out of gear and wouldn't go back in. About 10 seconds later it shut off. I was able to ride the momentum and pull over. It tries to start when I'm turning the key, but nothing. I've ruled out the distributor and the battery. All I can think now is: transmission ....
I've had problems with my distributor rotor from time to time, but no real indication that my transmission was having troubles.
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97 Silverado - 5.7 with 4l60e trans. truck will not shift into 2nd gear while driving. stays in first gear until rpm are high and shifts into 3rd. under hard acceleration will stay in 1st until let off gas then shift into 3rd. manual shifting results in same, no 2nd gear until selector is moved into 3rd then shifts into 3rd. Haven't got any trans codes, fluid change netted no change in performance, fluid was pretty dirty but didn't smell burned, and there were no metal shavings in pan.
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My silverado no longer starts and the fuel gauge no longer reads. so far figured out that there is no power to the fuel pump and sending unit. Looking for an engine wiring diagram for this truck with the 6.0 engine?
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Have a 1992 5.7 litre silverado with a screeching noise from the crankshaft pulley when engine is warm and idling. Noise goes away when engine is accelerated. Noise remains on crank pulley when serpentine belt is off pulleys. Did replace tensioner pulley, alternator, and idler pulley. No noise noted when started cold. Serpentine belt is only weeks old no signs of damage. No rough idle or performance changes noted just a annoying noise similar to a turbo but only when no torque is applied.
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'01 Silverado with the 4.8, sitting at 160k right now. I'm starting to notice a loss of power in the truck, when pulling out and accelerating it doesn't put you back in the seat like it used to and when going up a hill you have to force a downshift to not lose 15-20mph... it just seems like I'm pulling an invisible trailer back there. The fuel pump is about 1 year old, fuel filter less than 3 months, plugs and wires are about a year and a half old, PCV valve about 6 months old, fuel pressure regulator about a year old..
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I have a 2001 Chevy half ton 4wd. It has the 5.3L, 4L60E transmission, and a 246 transfer. I am having problems with shifting. if I out the truck in drive, the trans will wind out in 1st gear and not shift. I then pull it down to 2nd and it will shift. When it comes time for third gear, it will not shift at all. It just simply revs until it catches up with the speed at which the truck is rolling. I thought it was a bad tranny as I smoked one and replaced it with a used one so we rebuilt the tranny and it still does the exact same thing. Also the speedo is not working but the odometer is on. Don't know if its registering anything but its on. I have also checked every single fuse and maxi fuse in the engine compartment and the drivers side panel.
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why my truck is running rough the problem I am having is when you push the gas peddle more than a 1/4 of an inch it shudders and has no get up and go and also if say I'm doing 40 MPH and hit the gas you can hear the engine rev up but I will lose all power and actually lose speed I thought maybe the cats were bad and I changed the plugs for good measure but I can't seem to figure it out also I had the fuel pressure checked and its pulling pressure is great/
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Truck is an extended cab, 8' box, 4x4
This truck has begun to not start in cold weather. No click of the solenoid, no starter movement. Dash lights all work, heater, wipers, etc. I put a space heater in the cab, on the drivers side floor board, warmed it up and then it would start.
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Would bad harmonic dampener cause vibration when in park or when in gear but idling? Highway speeds no vibration..
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My 94 truck (Toyota 6 cylinder 3VZ engine) is currently idling at ~2000 when I first start the engine. After warming up or driving for a substantial amount of time, this eventually drops to ~1000-1100. I had the throttle body removed and cleaned (twice). This stopped some up-and-down revving which was happening, but not the high idling. This is a relatively recent development, and I've gone to 3 mechanics AND the dealer, all of whom say, 'it's fine'. They say it should run 'a little higher when it's cold'.
I think some of these assessments were based on the simple lack of engine error messages (no codes from the computer = no problem). I admit that I'm no expert, but I've had the truck for a decade; I know what's 'fine' and what's not. The usual idle was ~800 (in agreement with specs) and I've driven this truck in temps down to -30F. It has never idled this high before. Since it gets close to normal RPMs after warming up, I don't want to turn the idle adjustment down. I moved from a very cold, very dry climate at 6000 ft to a very wet, moderately cold climate at sea level - is there some other adjustment I need to make? Or is it normal for this engine to run so differently in these two climates? I'm at the end of my rope since no one thinks it's a problem except me.
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I purchased the vapor canister vent valve and purge valve as the service engine light has been on and this are the contributors. I want to know the location of these and how to access. It appears that they may be by the fuel tank and I don't know if I need to lift the box or something to access them. It is the 5.3L V8.
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I have a 2001 1500 with the 5.3V8 motor (ext. cab sb 4x4 LT). I was my dads and had the service engine light on for a long time for the P0446 code. I replaced the vent valve and the purge valve and light keeps coming back on. Usually can go for a day or so and then it comes back on and I get the same P0446 code.
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I just got a used Hyundai Santa Fe (2004). I was so excited until about 50 miles of driving it. Here is what happened:
I was idling at about 20 mph when all of a sudden the engine jumped (a little bit) - the RPM went down to 0 and the check engine light came on. I pulled to the side of the road and put it in park - then the car went back to normal like nothing happened, it didnt stall all the way. I was concerned and took it back to the dealership and they did a diagnostic test on it and it came back negative, nothing was wrong with it.
My boyfriend was driving up north with it and it happened to him, this time, it stalled. He said that the engine jumps a bit- but all of the lights go on on the dash. I remember it smelling pretty hot when I opened the hood before with it happened the first time, so I asked him to open the hood. He said it did smell hot. He checked the coolant and it was empty. It looks like there is fluid in it from the outside, but that was just the line that previous fluids had. He put coolant in (not in the actual radiator, but in the place where coolant goes) and it still stalled. I didn't want him to drive it anymore for fear of something worse happening, so there it sits.
Is this something that happens with most cars, or this kind of car? I am kicking myself for not purchasing the extended warranty, but I didn't have the extra cash to add over 1k to the price. Could it be just the coolant needing to go into the radiator? Do Santa Fe's typically shut down before they overheat? I was doing some research and it seems that cars stall because of either the fuel system or electrical system.
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