Question about 2005 Buick Rendezvous

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Idle too high

Bought vehicle w/ bad transmission. Replaced transmission but have 3 diagnostic codes P0128, P0453 & P0641. Idles too high (2000 - 3000 RPM) and doesn't shift smoothly (may have a bad reference somewhere)

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  • 23 Answers

Sounds like your idle curb sensor is shot. Did you replace the shift sensor by any chance, this also could make the vehicle shift hard. Did you change the fluid and screen when the trans was replaced?

Posted on Mar 24, 2014

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Posted on Jan 02, 2017

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  • 180 Answers

SOURCE: transmission won't shift

Throttle position sensor

Posted on Jan 07, 2009

  • 19 Answers

SOURCE: 1997 buick lasabre custom high idle, transmission, stalling

had same problem i would check the Idel Air Valve and also check all of your vaccum hose lines makeing sure there are no cracks or splits in rubber connectors if there is repair immediatelt because over time they start to dammage the internal parts fo the engine and if youve replace tps mass air etc. sounds like a vaccum hose problem

Posted on Feb 10, 2009

  • 32 Answers

SOURCE: high rpm shifting

Try changing your transmission filter.then replace with new trans,fluid.

Posted on Jul 26, 2009

thunderalley
  • 432 Answers

SOURCE: have 88 regal been sitting for 3 years it starts

TPS throttle pos. sensor may be bad.Chilton manual will have the info Autozone for 10.00

Posted on Oct 03, 2009

  • 38 Answers

SOURCE: car won't rev up,parked. idles smooth

maf ,throttle position or the o2 sensor - catalytic convertor

Posted on Nov 23, 2013

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I own a 2008 GMC Envoy Denali, 2WD. Yesterday the engine would barely idle and numerous lights on the dash came on including the check engine light. I had a friend check the diagnostic codes and it came up...


Five days prior to this, the battery had to be replaced. The engine was started without the pause for two minutes ?????? Where do you people come up with some of this stuff ? Pausing for two min. before starting has nothing to do with it . DTC P0651: 5-Volt Reference 2 Circuit
Some of the engine sensors on your vehicle work off of a steady 5 volt supply by the PCM - engine computer . One of these sensors is short internally bring down the PCM .
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance
Accelerator Pedal Position (APP) Sensor 1 5-Volt Reference 2 Circuit
P0651
P2122
P0651
--
Accelerator Pedal Position (APP) Sensor 2 5-Volt Reference 1 Circuit
P0641
P2127
P0641
--
Air Conditioning (A/C) Refrigerant Pressure Sensor 5-Volt Reference 1 Circuit
P0641
P0532
P0641
--
Camshaft Position (CMP) Sensor 5-Volt Reference 1 Circuit
P0641
P0340
P0641
--
Engine Oil Pressure (EOP) Sensor 5-Volt Reference 1 Circuit
P0641
P0522
P0641
--
Fuel Tank Pressure (FTP) Sensor 5-Volt Reference 1 Circuit
P0641
P0452
P0641
--
Manifold Absolute Pressure (MAP) Sensor 5-Volt Reference 1 Circuit
P0641
P0107
P0641
--
The Crankshaft Position (CKP) Sensor 5-Volt Reference 2 Circuit
P0651
P0335
P0651
--
Throttle Position (TP) Sensor 1 and 2 5-Volt Reference 2 Circuit
P0651
P0122, P0222
P0651

That's why it wasn't running good ,an lights lit on the dash. Your best bet , take it to GMC dealer .
No where in GM service info does it say after replacing the battery that you need to wait two min. before starting .
Position the positive battery cable (1) to the battery.
Tighten the positive battery cable bolt.
Tighten
Tighten the bolt to 15 N·m (11 lb ft).
Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

Aug 02, 2017 | GMC Cars & Trucks

1 Answer

What is relearn predcudre for idle on 08 chev. 1500 5.3 eng.


Throttle Learn
Description
The engine control module (ECM) learns the airflow through the throttle body to ensure the correct idle. The learned airflow values are stored within the ECM. These values are learned to adjust for production variation and will continuously learn during the life of the vehicle to compensate for reduced airflow due to coking. Anytime the throttle body airflow rate changes, for example due to cleaning or replacing, the values must be relearned.
A vehicle that had a heavily coked throttle body that has been cleaned or replaced may take several drive cycles to learn out the coking. To accelerate the process, the scan tool has the ability to reset all learned values back to zero. A new ECM will also have values set to zero.
The idle may be unstable or a DTC may set if the learned values do not match the actual airflow. Without Scan Tool - Learn Procedure
• DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0116, P0117, P0118, P0120, P0122, P0123, P0128, P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205, P0206, P0220, P0222, P0223, P0300, P0351, P0352, P0353, P0496, P0601, P0604, P0606, P060D, P0641, P0651, P1516, P2101, P2119, P2120, P2122, P2123, P2125, P2127, P2128, P2135, P2138, or P2176 are not set.
• The engine speed is between 450-4,000 RPM.
• The manifold absolute pressure (MAP) is greater than 5 kPa.
• The mass air flow (MAF) is greater than 2 g/s.
• The ignition 1 voltage is greater than 10 volts. Without Scan Tool - Learn Procedure
Important: Do NOT perform this procedure if DTCs are set. Refer to Diagnostic Trouble Code (DTC) List - Vehicle.
Start and idle the engine in PARK for 3 minutes.

The ECM will start to learn the new idle cells and Desired RPM should start to decrease.
Ignition OFF for 60 seconds.
Start and idle the engine in PARK for 3 minutes.
After the 3 minute run time the engine should be idling normal.
Important: During the drive cycle the check engine light may come on with idle speed DTCs. If idle speed codes are set, clear codes so the ECM can continue to learn.
? If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70 km/h (44 mph) with several decelerations and extended idles.
After the drive cycle, the engine should be idling normally.
? If the engine idle speed has not been learned, turn OFF the ignition for 60 seconds and repeat step 6.
Once the engine speed has returned to normal, clear DTCs and return to the diagnostic that referred you here.

Dec 18, 2016 | Cars & Trucks

1 Answer

2009 f150 fx4 engine starts, idles good then stalls after a few minutes


Any DTC'S - diagnostic trouble codes ? I would have the vehicle checked , could point you in the right direction an shorten your diagnostics . Your vehicle has a number of control modules , PCM , SJB , air bag , antilock brakes , instrument cluster , They all share information on a serial data communication bus . You could have one of any number of problems that could cause a stall condition . A shorted transmission range sensor , crankshaft position sensor . You could have a bad ground somewhere . Unless your an automotive electrical an electronics wizzard , I suggest you take it to a qualified repair shop .

Jun 07, 2016 | Cars & Trucks

1 Answer

Diagnostic code p0701


P0453 means EVAP emission pressure sensor high input. Possible causes:
- Faulty Evaporative Emission System (EVAP) Pressure sensor
- Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted
- Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection.
Code p0701 means Transmission control system range/performance. Possible causes:
- Open or short transmission control system circuit
- Poor transmission control system electrical connection
- Check powers and grounds to Transmission Control Module (TCM)

Aug 27, 2013 | Cars & Trucks

1 Answer

Code p0128 and p1289 check engine light on


Cleaning out IAC and MAF does not solce the problem of electronic continuity. Hook up to diagnostic tester at autozone and it will tell you what's up. with vehicle. free test.

Jan 18, 2013 | Cars & Trucks

1 Answer

Will not idle when cold


Its cold start issues:----
Go through the list of help links mentioned below:----

Click the link :----

Cold start problem and vehicle shudder around 2500 to 3500 rpms
http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html
----------
Low idle when cold out side?
http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html
--------------
Ford explorer 4.0 will not idle when cold?
http://technoanswers.blogspot.in/2012/02/ford-explorer-40-will-not-idle-when.html
--------
Automatic transmission shift lever hard to move on cold mornings?
http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html
----------
Car won't start when cold?
http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-when-cold.html
-----------

It can be issue with IAC( idle air control valve) causing the problem.


There are many other possibilities causing these idle issues. Engine idles rough.

There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----

Ford Expedition IAC valve replacing

http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------

Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

------------

1999 Ford F-150 Idles rough and quits when gas pedal is pressed less?

http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html

---------

Engine stumbles coming off idle when warm?

http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

------------------

Erratic idle on car?

http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

-----------


Cold start problem and vehicle shudder around 2500 to 3500 rpms

http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

----------

Low idle when cold out side?

http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

-----------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

--------


GMC Idle Air Control (IAC) Valve Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html

-------------

1996 Camry intermittent engine failure while idle?

http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html

------------

Engine quits at idle?

http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html

-----------

Car overheats and Air blows hot at idle?

http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

---------

High Idle Problem

http://repairhelpcenter.blogspot.com/2012/10/high-idle-problem.html

-------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?

http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html

--------

High rpm in neutral? Inconsistant high RPM in neutral?

http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html

-------

Vehicle stumbling at idle and shows code 54?

http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html

----------

Rough idle, staling and Erratic shifting?

http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html

-----------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

These details will help.

Thanks.

Dec 14, 2012 | 1999 Jeep Wrangler

2 Answers

92 dodge 1500 pick up 360 v8 automatic Starts, runs but hesitates, low power code 37 on diagnostic readour


Code 37 is torque converter clutch solenoid failure. Transmission wont shift in and out of overdrive.

Nov 28, 2012 | Dodge Cars & Trucks

1 Answer

P0705 CODE FROM CLUSTER, ALT CHARGING HIGH, NO INPUT FROM PRNDL, VEHICLE IDLES ROUGH


P0705 (Transmission Range Sensor circuit (PRNDL - Input))

Check this diagnostic procedure to solve it: files/manual/04/21acyt2f/cip0705.pdf

Hope helps (remember to rate and comment this answer).

Jun 28, 2011 | 2002 Mazda Tribute

3 Answers

My 2005 altima idles high and engine code


This P0507 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0507 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is greater than the desired (pre-programmed) RPM. In the case of GM vehicles (and possibly others) if the idle speed is over 200 rpm higher than expected, this code will be set.

Jun 07, 2010 | 2005 Nissan Altima

2 Answers

High idle -1984 chevy cavalier- 2.0 tbi automatic


sounds like a bad a/c compressor and you car thinks the all the time.

Jan 03, 2009 | 1984 Chevrolet Cavalier Type 10

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