Passat (B5) :: When Driving Low Idle Surge And Stall
When I drive the idle surges up and down and stalls when i slow down.
View 1 RepliesFord F-150 - 1997-2003 :: Surge Or Stall Out When Slow Down Sometimes
I have a 97 F150 with a 4.2. It has started to surge or stall out when I slow down sometimes. It doesn't do this all the time. I replaced the fuel filter about 2 mths ago and replaced the fuel pressure regulator then also. Would the tps have anything to do with it? I haven't had a scan done yet. Thought I would try here first because at one time someone has removed the two cats and the check engine is on all the time.
View 4 RepliesFord F-150 - 1997-2003 :: Engine Will Surge Up And Down 2 - 300 RPMs For About 10 Seconds When Cold
I have a 2002 F150 5.4 2 valve. only when the engine is cold, everyone once in a while the engine will surge up and down about 2-300 RPMs for about 10 seconds. also right when I put it in drive it will surge. I was thinking about pulling off the trottle body and cleaning it.
View 3 RepliesSilverado :: Engine Surge When Driving Down The Highway
I have a 00 Silverado Z71 Ext. cab, 4.8 motor and auto trans. 264,000 miles. I noticed recently when driving down the highway at times the engine will begin to surge. Usually between 40 and 50 MPH. if i let off the throttle it will smooth out or if I give it more throttle it will smooth out. What would cause this??
View 2 RepliesChevrolet - Trailblazer :: 2003 4.2 Engine Idle Surge With AC Compressor
The ac condenser unit will click every 7 seconds followed by a 3 to 400 rpm surge for 5 seconds or so, drop rpm then repeat. Belt looks fine, no slipping, new plugs a month ago, newish air and gas filter, does it in neutral or drive, read many ideas from low or high freon, iac, throttle body cleaning, o2 sensor? no codes thrown. Maybe coincidental but was discussing o2 upstream sensor recently on this board. The car experiences the same symptoms while driving.
View 1 RepliesSanta Fe (CM - 2007-12) :: Motor Will Rev Up When Cold / Drop To Low Idle Then Surge Up Again
My 2009 with the 3.3 motor will rev up when cold drop to a low idle then surge up again. It will do this until it is warm even when in drive. It never did this before only in the winter it would start at fast idle for a minute then drop to normal idle. There are no codes or lights, what would cause this?
View 6 RepliesElantra XD (2001-06) :: Won't Idle When Cold / Will Stall
My 05 Elantra 2.0, 5 speed won't idle when cold til I drive it a few hundred feet. It will stall. Only then will the idle rise to what it's supposed to be. Is there some sort of cold idle sensor/module that needs replacing?
View 2 RepliesSilverado :: 99 With 4.8 - Rough Idle And Hesitation On Cold Start Up
I have a 99 silverado with the 4.8 w/186k on the clock. I am having an issue with rough idle and hesitation on cold start up. Once the truck warms up the idle and hesitation go away. I have replaced the PCV valve hoping this fixed it, but it did not. I have also cleaned the TB and the MAF.
View 2 RepliesStall - Mercedes-benz - E-class :: E320 Stalls At Idle When Cold
Car: 2000 Mercedes-Benz E320 (W210) 4matic
This car runs beautifully if the air temperature is above 60 degrees or so (maybe 65) Fahrenheit.
If the air temperature, however, is much cooler, and the engine has had enough time to cool to air temperature, it stalls. Here's the sequence:- Start the car. Car runs fine, sounds good. Initial idle speed about 1200-1500 RPM.- Wait for car to warm up for a few seconds so it settles into normal idle. Idle speed settles to about 800 RPM after 5-20 seconds, depending upon air temperature.- Shift car into gear (D or R - doesn't matter). Idle speed drops to 500 or so, then the car stalls.- Restart the car. Allow it to warm up significantly (how much depends upon air temperature). - Shift into gear (D or R). Engine idle speed drops a bit, then recovers to ~800 RPM. No problems after that.
If it's a little cool (55-60 degrees Fahrenheit), I can drive off once the engine temp gauge needle rises a few degrees (45-50 degrees Centigrade).If it's around freezing (20-40 degrees Fahrenheit), I can't drive off until the engine temp gauge reaches nearly 80 degrees Centigrade.
If I'm on a hill (pointing down), I can start at a slightly lower temperature by allowing the car to start rolling as soon as I shift into gear. In this case, there's less resistance, so the idle speed doesn't go low enough to stall the car. If I am on a level surface (or pointing uphill), 80 degrees Centigrade seems to be almost a magic number when the air temperature is below 40 Fahrenheit (near freezing). When the needle is showing about 78 degrees Centigrade, the car will still stall. When it reaches 80 degrees Centigrade, the car is fine, and will not even come close to stalling when put in gear.
ONE CONFUSING VARIABLE: When I took this to my mechanic, it didn't exhibit the problem for him. When I picked it up (about 30 Fahrenheit), it stalled. He came out and started it, put it into gear, and it idled without stalling. I got in and let him watch while I got in, started it, put it into gear, and it stalled. We have no explanation as to why this would be any different (we tried several times, varying techniques, brake pressure, etc., with the same confusing results).
Ford - Explorer :: 1995 - Rough Idle / Stall And Choke A Little When Cold
My truck is a 1995 Explorer 4.0 150,000 miles, 5 speed.
Problem - Rough idle : when cold it's worse and will stall and choke a little. When warmed up it just has a rough idle but will not stall and stays at a pretty constant RPM. It's very tolerable when warmed up but still not right. It drives fine once off idle. No black smoke that I can see. Power may be just a little off but I would not bet on it. MPG seems about normal but haven't been on a long enough trip since problem started to tell for sure. Also longer than normal cranking on occasion.
Diagnostics so far : Fuel pressure is at 32 PSI, vacuum off regulator it's at 40 PSI. Not sure about key on only as I don't trust the autozone loaner gauges. You have to fiddle with it each time before it will read. Leak down after 30 minutes was about 4 PSI
No Check engine light ever. KOEO test shows no hard or on demand codes, I get the 111 pass. From CM I get 336 and 45.
336 is EGR related and my looks pretty rusty. I put a vacuum pump on it while running and the EGR held vacuum but had no effect at all on idle, I was expecting it to get worse as I opened the EGR so it may be stuck.
Searched high and low for vacuum leaks by ear, visual and with starting fluid all turned up nothing.
Actions so far : Replaced plugs, wires, IAC, and fuel filter. Cleaned MAF sensor and throttle body plus ran lucas fuel injector cleaner through it.
Next steps : I've got the EGR but it's so rusty I am sure I'll break the tube it bolts to plus I don't know it that alone will cause the rough idle. Will the DPFE sensor and/or EVR create a rough idle yet not turn on the CEL?
Thought about changing the fuel pump and/or regulator but the numbers are not terrible. Agree?
Thought about changing the intake gaskets but don't see any leaks.
Sierra :: GMC TPS Sensor - Idle Surge / Low Engine Power
My truck has been having idle surge, low engine power, says stable tracks is off, computer said TPS pedal sensor. I replaced it. Within 3-4 days my truck does the same thing. I turn it off and eventually my truck runs fine with the exception of my engine light is on truck runs good. I put the computer on it again while the truck running bad and it continues to say it is the TPS sensor.
View 2 RepliesFord - Ranger :: 2003 - Rev Surge From Low Idle To High Every Few Seconds?
The revs surge from low idle to high (about 1000 rpm) every few seconds, but only when the truck is in gear,and the AC is on. What it could be. Also is it something I could fix myself? I have been driving with out the AC for a while but going into summer I need it on.
View 2 RepliesFord 6.0L Power Stroke Diesel :: 2003 - Surge At Idle After Driving For A While
My 2003 6.0 has started to surge at idle after driving for awhile. Like when I drive to work (30 min) and pull off the interstate the idle will bounce around at the stop sign (only jumping like ~100rpm). Does this sound like the ICP to you? I've replaced it once before and am wondering if it's time to do it again?
Also the truck will sometime be hard to start. And when I say hard to start I mean turn the key, let the GP cycle the turn to start and it just cranks. But as soon as I turn the key back off and cycle the plugs again it'll fire right up. It doesn't seem to matter if it's hot or cold. It's been doing it since I got the truck. It seemed to get better after the 1st ICP but didn't completely get fixed.
Ford - Explorer :: 2003 - Idle Surge When Stop At A Light Or Just Running In Park - Code P2197
I have a 2003 ford Explorer xlt v8 4.6 with a P2197 code.(02 sensor bank2 sensor1)...
I had code P2195 a few months ago and replaced that 02 sensor but just recently truck threw code P2197 and is now starting to idle surge when I stop at a light or just leave it running in park.
Replaced PCV valve and the hose that goes from pcv valve to IAC also replaced Fuel Filter. Cleaned IAC, Throttle Body and MAF did the old check for vacuum leaks with can of carb cleaner nothing found.
Pulled all coil packs off checked OHMs all read .6,coil boots looked to be in good shape going to replace spark plugs and 02 sensor.
Ford Super Duty (1999-2016) :: 2005 - Surge And Stall When AC Comes On / Gas Pedal Disables
I have a 2005 f252 6.0 diesel with electronic climate control and when my a/c comes on it surges/stalls my truck and throws several codes (P0108, 0403, 0405, 2104, 2123, 2138, 2139, 2140) and disables my gas pedal. I know I am loosing my 5v reference, but not sure where. I have replaced my compressor, alternator, both batteries, low pressure switch, accumulator, oriface tube.
I've disconnected several 5 v reference sensors and all gives me the same results. if I disconnect my low pressure switch my defrost and heater works fine and no issues, but this is not engaging my compressor. when I plug the low pressure switch back in , the same issues happen, I checked my fuses, and swapped the relay in the battery box. Looking for drawings of the circuitry or wiring diagrams.
Ford 7.3L Power Stroke (1999-2003) :: Idle Surge When Tuned / RPMs Drop To Around 621 - 630 Then Shoot Back Up To 660 - 675
Recently I have noticed that when on a tune other than stock I am getting a surge at idle - my RPMs drop to around 621-630 then shoot back up to 660-675. On my stock tune my RPMs stay around 640-667 and don't cause the surge (felt as a shimmy so to speak). Is there anything else that causes a similar symptom? I attribute it to tuning due to it only happening when running anything but stock but could be wrong.
View 2 RepliesFord 6.0L Power Stroke Diesel :: Low ICP And Engine Stall When Put Into Gear Cold
2004 excursion 6.0, head studs, 4inch straight pipe, egr delete, sct live wire ts running vivians looney wild, so I recently rebuilt the trans (5r110w) just soft parts rebuild frictions and steels, and it has about 5000 miles on it since, but I have ran into the issue of the engine stalling when it's cold when I put it in gear, any gear that is, but once it's warm it's fine, just checked the fluid and it was in the sweet spot, also on my tuner the command gear is going from 2nd, 4th, and 6th completely skipping 1st, 3rd, 5th, trans was shifting normal until about 100 miles ago and my tuner is telling me my icp is 600ish at warm idle and at wot only seeing 1500 psi maybe, any clue as to what this would be? Truck won't start with stock tune, guessing the looney wild is ramping up the icp and is seeing at least 500psi to start. I'm thinking it's possibly the hpop.
View 14 RepliesFord - F150 :: Engine Will Idle Down And Then Stall Out When Come To A Stop Light
I have a '95 Ford F150 with a manual transmission and when I come to a stop light, the engine will either idle down more then it should then go back to normal or it will idle down and then stall out. And when I accelerate, I have to gun the engine for it to go forward or it will stall out again. I replaced the fuel filter and cleaned the air intake area and it still happens.
View 2 RepliesFord 7.3L Power Stroke (1999-2003) :: Elevated Engine Idle When Cold / Initial Startup?
What causes elevated engine idle when cold or initial startup? Asking another way, what would cause it not to have the elevated idle on start up?
View 14 Replies