Acura - Mdx :: 2002 - Sudden Rev As Though Car Is In Neutral

My 2002 Acura MDX is an automatic. Frequently while in the midst of driving and foot on gas, the car will all of a sudden rev as though it is in neutral. The RPMs rise and in order to gt the car to continue driving, I have to lift my foot off the gas completely and then it seems to re-engage and continue on. What could be causing the "neutral-like" blips while in drive?

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Phaeton :: Slight Wheel Wobble At High Speed

Ive had my new Phaeton just over three weeks and have ha to take it back to the dealer with a slight wheel wobble at high speed, I gather the geometry on these is quite complex and the alignment is usually done on all four wheels. Interestingly however the dealer diagnosis is for four new tyres, obviously this is under warranty, but it seems strange to have to fit four new tyres on a brand new car!

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Ford 7.3L Power Stroke (1999-2003) :: Sudden Shut Down / Idle And Small Hiccup At Speed

I've read weeks worth of post to try and fix my late 99.5. First, I'll give syptoms then what has been changed/worked on. While driving at low rpm truck will shut off. As if the key was completely turned off. I am able to throw it in neutral and start back up. Not very safe.

Most the time when I feel the power/electrical loss I can hit the gas pedal fast and most the time "catch it" before it will completely shuts down. Also, I feel a very small "hiccup" at higher speeds. Not often tho.

Changed. Cps. Twice. First aftermarket, second ford.
Changed ICP sensor.
Had dp tuner installed. Right after tuner install abs sensor went out. Like the same day.
I have edge insight for all gauges.

I'm lost.. if these symptoms ring a bell for any of you that would be fantastic. I'm original owner...

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Passat (B7) :: 1.8T - High Idle On Startup

Even on a warm day, when I "cold start" the car....the revs hang high for a long time....at least a good minute or two. This is my first PZEV(VW) engine though--CPRA--so I'm assuming it's for the emissions? With the intake & exhaust I have on...it's obviously A LOT more noticable.

For the first 10-15 seconds, there is a HUGE sucking sound for the SAI pump and then that shuts off....but then it still screams along at 1,200-1,500 RPM's for another minute or two until it'll FINALLY settle down to idle.

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Santa Fe (CM - 2007-12) :: High RPM And Idle On Startup

As the weather is getting colder I noticing again my RPM's taking longer to drop down to 1200 or less. Upon startup the engine rev's to 2000 and drops in 2 sec quickly to around 1500 (all these are based on the crude gauge readings, not a digital tach).

I don't like high RPM cold starts in the first place and why its stays just around 1500 and lower for about 2 minutes before it lowers to around 1200RPM. I don't like engaging the transmission at those high RPM's. My other vehicles did nothing like this and the increased start RPM was down 1000 within a minute.

What sensor is having the computer run it like that and not let it drop faster. I doubt its the O2 sensor since its the same on a hot day just doesn't rev up to 2k but 1500 or so. Jabs at the gas pedal doesn't work it drop any sooner either.

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Ford Excursion :: 2003 - Rough Idle - Puff Of White Smoke On Cold Startup - Slight Exhaust Leak

I've been chasing a problem all summer. Began with crappy batteries dying intermittently. I replaced the batteries, FICM, finally cleaned EGR valve and replaced ICP with pigtail. The problem is still persistent. Basically a rough idle, puff of whit smoke on cold startup, rough running at around 1500 rpms( driving at 50 mph). The ICP was soaked in oil so i was confident replacing it would finally cure my issues. It actually got worse with the rough idle turning to a surging idle and quite rumbly at 50 mph speed. I guess its time to look to injector issues but i thought id check if after replacing icp/ cleaning egr. I also have a slight exhaust leak at turbo out that i can see. The clamp is not seated properly. This after turbo connection to exhaust.

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Ford F-150 - 1997-2003 :: 4.6L - High Idle At Startup

I've got a 2003 ford f-150 with a 4.6l 150000 miles. when it is started the rpms are at 2000 for about a min. and a half then it drops to normal when its started cold. when started at operating temp. The rpms are at 2000 for about 30 to 45 sec then drop to normal. The iac, upper and lower intake gaskets, intake run controller valve, dfbe, low intake and shield, coolant temp. sensor, intake air temp. sensor, egr, egr regulator valve, maf, ecm have all been swapped out no vacuum leaks all line in good condition tps voltage reading of 0.84v...

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Toyota - Camry :: Idle Speed Blocked Around 2000 RPM On Cold Startup

1992 camry 4 cylinder ... Since having my engine replaced with a used engine block my idle speed when I first start it up or when it is cold is around 2000rpm which lasts for about 2-3 minutes until it begins to fall to the normal range of 1200-1400 and finally to 850 or 900rpm when warm. how can I fix this or is it okay to idle at 2000rpm for a couple of minutes? is it hurting anything?

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Acura - Integra :: 1994 - Started Shaking All Of Sudden?

I I have Integra 94 RS, all of sudden it started to shake like crazy. it feels like the car has a stuffy nose (something clogged).

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Santa FE SM (2001-06) :: Surging Upon Startup And High Idle RPMS - TPS Replaced

2004 Santa Fe .... 2.7 6 Cyl 4WD 150k miles

Recently I started experiencing RPMs surging upon startup and driving before my engine warms up. The problem has gotten worse to where I push on the accelerator the RPMs jump to 2700 and the transmission feels like it disengages. My initial thought was the tranny was going bad and slipping. I checked the fluid level in the T and found it was maybe a half Qt. low. I topped it off, but this had no impact on the problem. On a side note, I am able to use the manual shifting feature on the "His and Hers" Shifter and drive the vehicle without any issue. Transmission works fine in manual. The surging RPMs which only occur in Automatic mode, triggered the CEL and I got a code of P0123 which is high side voltage on the Throttle Position Sensor. I replaced the gray TPS with a new black one.

Upon startup the RPMS jumped to 3000 just sitting in Park. I disassembled and reinstalled figuring I had something bound in the throttle. After reassembly the idle went up to 2200, still no good! I reinstalled the original gray TPS and the RPMs, upon starting, RPMs were 1500 with the old sensor...still too high. I did reset the ECU twice during the process of putting in the new sensor and reinstalling the old sensor. Right now I found that when I disconnect the TPS electrical connector, the engine runs normal. It starts right up with the TPS totally disconnected and idles at 750 RPMs! It will not shift to 2nd gear though, when I try to drive it in Automatic Mode. I can however drive in Manual Mode and drive normal and shift right through the gears. Who needs automatic mode right?!!!

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Chevrolet - 1500 :: Loud Whining / Spinning Noise On Startup - High Idle

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?

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Honda - Acura :: 2000 TL All Of A Sudden Stopped Starting - P1607 OBDII Code

I have an Acura 2000 TL. My car all of a sudden stopped starting. I called AAA and the tow truck driver did some repair like thing. The car started after this. He told me, there was a problem with the remote starter or security alarm issue. After that the car starts but the immobilizer light is completely off. It gives P1607 OBDII code. When I looked under the dash, I saw a black button and pressed on it. It gave some clicks and nothing happened. I pressed on it and turn the ignition switch on and off a couple of times and nothing happened. I pushed on the button while pressing on the brake peddle and released within 2 seconds etc. The car has a Code Alarm remote start with two button fob and it was disabled. I don't know whether the AAA driver enabled it causing the immobilizer bypass to actuate to have the P1607 code. The car starts ! What can I do to get the Code Alarm remote start to disable it?

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Ford Super Duty (1999-2016) :: Wipers Turn On At Startup After High-idle Mod Installed

Per the instructions I used upfitter #4 and a 21k resistor. High idle works, slight delay and gradual ramp up to 1150 rpm, but why does the wiper turn on for just one wipe now at startup?

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Tacoma :: 2.7 EFI Engine Has High Idle Speed

1995 Tacoma with 2.7 EFI engine has high idle speed. When cranked cold idles at 800 rpm but as it warms up idle speed increases up around 1600 rpm. Does not idle down when clutch is fanned, have checked for vacuum leaks and have also checked most sensors. The exhaust manifold is cracked and I am not sure if this might be part of the problem. I am not convinced issue is not vacuum related but not sure of a definite way to resolve this question or issue.

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Passat (B6) :: High Idle Speed At Odd Times

I bought my 3.6 in november with 2k miles on and now have 15k, in the last month or 2 I've noticed that at odd times it idles high. It normally idles at 500-600 id say and will randomly peak to 1000-1100. It wouldn't really bother me except it sounds like hell and I have to practically stand on the brakes for it not to jump forward. I've had 13k miles and 6 months of problem free driving

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Ford F-150 - 1997-2003 :: 2002 - Slight Missing At Idle

I have 2002 f150, fx4, ext cab, 110000miles 5.4 automatic truck, i just replaced my spark plugs, it still have a little miss, thought spark plugs will resolve but its the same, im wondering if i should change O2 sensors? clean EGR Valve? IAC valve? i am not getting good gas mileage and maybe its this missfire or something, its runs good without any problems, just this slight miss makes me think if its the cause to bad MPG.

I tried to find threads with pictures of how to change O2, how to clean EGR, and IAC, i remember seeing these threads but cant find em. And you think these three things will resolve my MPG and the slight miss?

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SC/SL/SW :: 1998 Saturn SL2 Idle Speed Changes Low / High Then Back To Low

1998 saturn SL2 idle speed changes low, high, back to low. Some times the car dies, can happen any time a few times in traffic. Once the engines dies the idle stays low for 5 minutes, then the problem goes away for a while (a week). You never know when it will happen.

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Cavalier :: PO340 Code - Rev High At Idle Or Low Speed

This is the code that comes up on my 2002 2.2 Cavalier. Camshaft sensor bank 1. After a lot of research I was led to believe it was most likely the upstream 02 sensor. Replaced it, engine light still on. Wipe codes, light goes off, turn off car, turn back on, light back on. What other possible problems could be causing the light to be on? It's been on the entire time I've had the car which is 3 years. I've had it e tested with the light on and it's passed with flying colors. It's up for an e test, actually I have 5 flipping days to figure this out, have it e tested and get a sticker for it.

I've been trying to figure it out for well over a month since I realized an e test was due and they've changed the way they do the tests now, they told me even tho the light most likely has nothing to do with the emissions they can't test it if the light is on period. I was told to start pulling fuses because it could be something as simple as a bad fuse. The car is in relatively good shape under the hood, no major problems and much of the car is still factory. No weird symptoms other then sometimes it will rev high at idle or low speed but as soon as I get to 4th gear it always balances out.

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Prius (2004-09) :: High Mpg (km Per Liter) At Idle Speed

I am a new buyer' bought my prius 2008 about a week ago. the is something i cant understand, when a the engine runs at idle speed, the fuel consumption monitor shows 99.9 km/liter ! ! ! and it's also calculated at the average... is it something i should worry about ?

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