Volvo - S60 :: Runs Rough - CEL On - Smooth When AC Is Off
Feb 24, 2014
basically it runs rough and makes noise when AC is on. While it may not be perfect when off, it certainly is quieter. Check engine light just came on.
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Feb 24, 2014
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Volvo - V70 :: 2001/ 24T Vehicle Runs Smooth When Cold / Runs Rough With Delayed Acceleration On Warm Up
My 2001 V70 24T runs smooth when cold as it warms up it runs rough with delayed acceleration reaction ....
View 1 RepliesFord - Lincoln :: 2004 - Rough Idol But Runs Smooth When Gas Is Given?
My 2004 Lincoln navigator is very rough at idle but runs smooth when I give it gas. Someone said my VCT may be stuck or bad. I looked at Youtube videos of VCT replacement but in all the videos the VCT's are up front in the valve covers. On the Navigator they aren't there. Where the heck they might be located?
View 2 RepliesCamry :: 2011 Car Shaking At 30 To 40 Mph A Lot And Runs Smooth On More Speed
I have 2011 camry, which I drive at 30 to 40 mph some times its shaking. if I leave steering wheel it moving little left and right itself. (just little but going straight almost). what will be the problem is? current odometer 43K. no accident.
View 9 RepliesElantra XD (2001-06) :: Engine Sputters In Gear / Runs Smooth In Park And Neutral
The title says it all. I have no CEL.
View 4 RepliesFord 6.0L Power Stroke Diesel :: 2006 - Runs Smooth But Low Power
I had a no-start, replaced standpipes and dummy plugs. Passenger side dummy plug o-ring was shot, some of the others were pretty worn. Polished the spool valves and replaced injector seals. Confidently put it back together and fired it up. Idled sweet, bad low on power, especially at low rpm. FMP was bumping 45 so sent it to ED. It seemed a little better but not fixed. No visible smoke. Engine temp doesn't seem to make a big difference but it may be slightly better warm. Fuel consumption is hovering around 9mpg over the last 150mi. FPW stays around 800us warm/5.8ms cold. I think the low mpg is the excessive throttle needed to pull away from stops and climb hills.
I spent the day checking stuff and found the following.
The only codes are for a couple of glow plugs and a "key in ignition" error. No contribution codes. Monitored (with FORScan) the turbo (MAP, Baro, EBP, VGT), FICM, TPS, ICP/IPR(cold and warm) EGR, vRef, MAF vs TPS, and some other stuff like miss fire count (0), voltages everywhere I could look, and FPW. I saved a dozen files while checking this stuff and can be more specific on the numbers. Fresh fuel filters, No bubble in upper filter housing while cranking. Fuel pressure was 64 at idle, 61 when power braking or revving. No leaks on CAC or exhaust.
Possible culprits : Could I have done something to cause low power when I cleaned up the injectors? I'm sure the orientation of the spools and coils were right but I did "fudge" on the torque for the coil screws. If anything they may be a bit loose as I read a couple of times over tightening would cause problems. I am certain there is no play and a slight amount of load on them. I did clean the tips and bodies on a bench grinder with a gold colored wire wheel, light pressure and just a quick pass cleaned them up. Also, I ohmed the coils while they were on the bench. No shorts or opens except where there was supposed to be opens. All the coils were .5ohm except three read .6 and two read .8. Injector buzz sounds raggedy, not smooth. Any of that a issue?
Cold ICP/IPR is higher than it used to be, at 40 degrees I see 35% and 1300psi but ICP desired is 1250psi. I also noticed monitoring the TPS, rpm desired stays at 0. All three tracks measure position but one shows a constant .25v while the other two vary. Throttle position fault stays at "no" at all times. When it was a warm no-start (at the beginning of all this) I cranked it for maybe a minute total. ICP never went above 300psi so I knew why it wasn't starting. It was cranking normally in the beginning but part way through the second try RPM's went up suddenly as if it got easier to turn. When I started the truck the next day it limped home in this "low power" mode and even though it starts righ up now and idles smooth cold, the power issue remains. I plan to get a better set-up and recheck fuel pressure at WOT tomorrow.
Ford :: 2006 - Rough Idle And Can't Seem To Get It To Smooth Out
I have a 2006 Ford 150 with about 120,000 miles on it... For almost 9 months now I've had a really rough idle and I can't seem to get it to smooth out. I've tried new plugs, tune up, new fuel filter, higher octane gas, fuel injector cleaner, octane booster, cleaned my mass air flow sensor and nothing works... I've checked the trucks ECM for any codes but it comes up clean every time...
View 6 RepliesSanta Fe (CM - 2007-12) :: Quite Rough Ride / Not Smooth?
I have a 2011 Santa Fe - I have noticed it is quite a rough ride. I guess I am used to the suspension in my Passat, but I still find it is not as smooth as it should be. I thought maybe giving it a bit of time would work, but so far at 25,000km it is still the same. Find it's a bit of a rough ride? Or should I look into it?
View 39 RepliesLeSabre :: 99 - Cold Start Rough Idle But Smooth Out
I have a 99 lesabre cold start rough idle but smooths out . Warm no start. Trouble codes P0171, P0300, P0336. Had plennum replaced 2 years ago but I'm seeing coolant around the base of the plennum so I'm going to have to do that again but I don't think that has anything to do with the warm no start.
View 14 RepliesRough - Mazda - 626 :: 1999 - Rough Idling But Runs Fine At Higher RPM
This problem has been getting worse over the last 2 years. When the car starts it idles fine at about 1000 RPM. As soon as it warms up, it starts to idle rough, between 500 and 750 RPM. It almost quits running. As soon as you give the car some gas it runs just fine. About 3 weeks ago I got a "Engine Lean" check engine light error. I reset the system and have not gotten the error again. Since then I have: changed the MAF cleaned the EGR (made sure it closes completely and ohm out the coils in the actuator) changed the O2 meter on the exhaust manifold cleaned out the throttle body Ohmed out the air idle controller. What I should check next. I was planning to check the fuel pressure in case it is a fuel system problem. It is a 1999 ....
View 5 RepliesAccent RB (2012+) :: Idling Rough After Smooth Driving For About 20 Or So Minutes
Having problem with 2016 Accent Sport (or other model) idling rough after smooth driving for about 20 or so minutes? It has started doing this about a month after being purchased. About 700 miles or so on it) When in stick mode it smooths out and purrs like a kitten, but back in automatic mode it idles rough, with Active Eco on and off. I have an appointment to take it in to the dealership 5/7, but I wanted to see what the cause was.
View 7 RepliesCorolla / Matrix 2009-13 :: 2010 S - Ride Not So Smooth / Rough And Grainy
I have a 2010 corolla S with around 15K miles. I'm not sure if this is really an issue but it has been bugging me for sometime. I have noticed that sometimes the engine / ride feels really smooth and feels as if the car just sails along. But most of the days the ride feels a little bit rough/grainy... I drive mostly in the city (around 80%) and live close to work (3miles one way). I do oil changes every 5 months... Would some kind of tuning be required? Or is this just normal?
View 7 RepliesBuick - Lesabre :: 1994 V6 Smooth When Idling In Park But Rough Idle In Gear?
1994 Buick LeSabre Custom 3.8 Litre V6 with 103277 miles.
It runs smooth when idling in Park, rough when I put it in gear when I am stopped (either drive or reverse) has hesitation when accelerating, it smooths out again when driving then it starts to drive rough at about 55 MPH.
Mechanic told me it was the plug wires. I replaced those and the plugs. This fixed the hesitation when accelerating issue, but the other issues remain (now even seem a little worse) I thought the plugs and/or wires were bad, so I rechecked the gauge on the plugs and traced to make sure I had the wires hooked up right. Everything seems in order.
I have added fuel injector cleaner, and changed the oil, oil filter, spark plugs, spark plug wires, air filter, flushed the radiator, and changed the thermostat. (For a tune up since it has admittedly been a while)....
Ford Ranger / B-Series :: 1996 - Running Rough / Smooth Out A Bit When RPMs Raised Up
Recently bought a 96 4 cylinder 5speed 2wd ranger. 200xxx miles on it and its former owner had a young guy change spark plugs . Truck ran fine before, but after is when the rough running showed up.
A quick check of the plug wires and there locations looked correct and also tested the wires for spark with a timing light attached to them, checked shows all are firing.
Seems to smooth out a bit when rpm's are raised up, but still acts like not running smooth.
I swapped out plugs. Looks like they haven't been changed in a long time .Some of the straps are burnt and are shorter than they should be, but still runs rough, very little improvement .
Check vacuum lines for leaks/breaks and all looked good. removed line off brake booster and plugged, didn't matter.
It doesn't throw and check engine lights. It does smooth out some as the rpm's rise, but still not smooth .
Volvo :: 1985 245 Runs Unevenly And Now Starts Hard
I have an '85 245 that runs unevenly and now starts hard. I got a Noid Light to check the injectors. My question is: Should the light blink or flicker?
This video: [URL] .... shows the light blinking but it's not an '85 volvo. The wiring diagram for mine shows all the grounds connected together which could (I think) cause them all to inject when any cylinder fires, and thus cause (observed) rapid flickering, but seems like a waste of gas.
Volvo :: 1976 245 Engine Runs But Losing Compression When Press The Gas Pedal
Does this sound like a choke issue? The car starts up fine and runs like a top. It even drives normally for about a mile, but then as the engine warms up it starts losing compression when I press the gas pedal. The engine runs fine when my foot isn't on the gas, but stutters and won't go anywhere when I'm pressing the gas.
View 1 RepliesFord 7.3L Power Stroke (1999-2003) :: Rough And Lacks Power When Cold But Smooth At Warm?
My truck runs very rough and lacks power when cold, even during the Texas summer. Once it warms-up, everything is fine. It's almost like turning on a light switch. If it's plugged in for a couple/few hours, it's smooth as soon as it starts. I'm assuming it likes the oil once it reaches a specific temperature. What my problem is?
View 14 RepliesChevrolet - S-10 :: Runs Rough At Startup
1996 s-10 runs very rough at start-up .. smooths out after it warms up and runs really great. Is it just the plugs and wires or something else??
View 1 RepliesPassat (B5) :: 2000 - Runs Rough With A/C On?
The car is a 2000 passat v6 with ~135k, auto trans. Well when the car is cranked it takes a bit to get running and once it does, black(wet) specs come out the exhaust and go all cover the surrounding area of the tailpipe. When the a/c is off it almost sounds like it is running normal but when the a/c is on(at idle) the engine runs very rough, it almost sounds like a misfire. It does have a check engine light, but i have no obd2 scanner, and from what i've been reading might not even do me any good because of vag com?
View 5 RepliesTown Car :: 2005 Runs Rough / No Codes
I have a 2005 Town Car with 40 K Miles.
Engine runs rough at most slow rpm's .
No codes and I change : new sparks plugs / new Fuel Filter / new air filter /
New oil / new ATF / good MPG , everything good but runs to rough.
Have an 94 LTC and this car runs better.
GMC - Sierra :: 1995 - Runs Rough And No Power
I have a 1995 GMC that I have owned since new. It has 212,000 miles on it, a 305 TBI, and a manual five speed. It started running bad all at once. It idles rough, at different speeds and never settles down, (between 900 and 1300 rpm. It smells like raw gas, smokes, and has no power to get started from a stop. I checked the vacuum, it is at 19" at all rpms. The MAP sensor reads 0.3VDC when off, 4.12VDC when idling, and 1.5VDC at WOT. It appears to have 12PSI fuel pressure (after a messy test set up!) on the fuel pump side of the fuel filter (filter replaced 10,000 miles ago). The EGR valve appears to cycle OK when I suck on the vacuum line so I assume it works OK. I found a bad TBI flange gasket and replaced it. It runs slightly better but still smells like raw gas and has no power. When I try to accelerate, it immediately has no power, like a big vacuum leak. The idle is close to normal (900rpm = normal). Do I just start replacing parts?
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