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2008 trailblazer has code P0651

Can this cause the engine to run ruff periodically?

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6ya6ya
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Posted on Jan 02, 2017

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jeffbvegas1
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SOURCE: 2008 Trailblazer Engine Stalls and Dies.

This vehicle is under warranty including towing. There is probably a malfunction within the fuel delivery or ignition system of the vehicle. Sometimes electronic items break down hot,then start working again once cooled.I would let GM take care of this matter under factory warranty

Posted on Jul 10, 2009

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SOURCE: will fuel regulator cause 2001

have car scanned to find problem code if light is on. any auto parts store will scan for free. signs of a bad fuel pressure regulator--the vehicle will not start ( usually in the mornings ) many times engine will start but stall shortly after starting. a bad reg. can result in fouled plugs. replacement is only cure. black soot on plugs, black smoke from tailpipe, running rough, stalling, raw gas comes out tailpipe. are the symtoms if it is bad. some sensors do not nessesarily turn light on.

Posted on Sep 15, 2010

wyet_helps
  • 339 Answers

SOURCE: 2008 Chevy Trailblazer Error codes B0455, B0131,

{: ) If your vehicle is equipped with an air suspension system, one possible source for this combination of codes is the wiring along the air compressor located on a bracket on the left rear chassis frame, near the spare tire. Carefully pull the plastic conduit off of the wires, and inspect the wires for any cuts / abrasion or possibly a resulting corrosion (due to a short or open circuit & water exposure)

Posted on Jun 21, 2011

  • 645 Answers

SOURCE: 2004 chev impala is running ruff check engine lite is on

The naturally balanced configuration virtually eliminates shake and idle roll. The standard Vortec 4200 engine delivers the most horsepower in its segment - 275 hp with 275 lb.-ft. of torque for strong trailer towing capacity.---------------------------------------------------------------------------------------------
Audi-VW Airbag Reseter

Posted on Dec 19, 2012

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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

2007 cobaltpo651 circuit b how do i trll which is circuit b


DTC P0651: 5-Volt Reference 2 Circuit First off do you know what computer reference voltage is ? Your vehicle has 2 reference voltage circuits . This reference voltage is used to power engine sensors .
Diagnostic Fault Information
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
--
Crankshaft Position Sensor 5-Volt Reference 2 Circuit
P0651
P0335
P0651
--
Fuel Tank Pressure (FTP) Sensor 5-Volt Reference 1 Circuit
P0641
P0452
P0641
--
Intake Camshaft Position Sensor 5-Volt Reference 1 Circuit
P0641
P0340
P0641
--
Manifold Absolute Pressure (MAP) Sensor 5-Volt Reference 1 Circuit
P0641
P0107
P0641
--
Secondary Air Injection (AIR) Solenoid 5-Volt Reference 2 Circuit
P0651, P2432
P2431
P0651, P2431
--
Throttle Position (TP) Sensor 1 5-Volt Reference 2 Circuit
P0651
P0122
P0651
--
Throttle Position (TP) Sensor 2 5-Volt Reference 2 Circuit
P0651
P0222
P0651
--

How to check the 5v reference circuit for short to ground Cadillac

Jun 10, 2017 | Cars & Trucks

1 Answer

What are the probable causes of DTC P0651?


http://www.2carpros.com/questions/chevrolet-tahoe-2004-chevy-tahoe-engine-stalls-has-p0651-service-engine-cod

Dec 12, 2015 | 2008 Chevrolet Chevrolet TrailBlazer LT

2 Answers

2005 motor in a 2008 chevy blazer


Chevrolet TrailBlazer - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Chevrolet_TrailBlazer
WikipediaProduction of the Blazer overlapped with the TrailBlazer until 2005, when the 2-door ...2006-2008 Chevrolet TrailBlazer LT ... The Active Fuel Management system on the V8 engine shuts off 4 of the 8 ... 2003-2005 Chevrolet TrailBlazer EXT.

Trailblazer cranks but won't start - first things to check ...

? 3:42
www.youtube.com/watch?v=4O-wplilVV0
Mar 6, 2012 - Uploaded by MAY03LT
These are the first tests that I do when I have a Trailblazer that won't start. ... Car will not start trouble shooting guide, wontcrank, wont turn over, etc. ... Chevy Trailblazer - testing fuel pressure 2002 -2004 4.2 I6 - Duration: 4:34.

Nov 06, 2015 | 2008 Chevrolet Chevrolet TrailBlazer LT

2 Answers

What is the code p0473 for a dodge sprinter van 2008


Error Code: P0404
Fault Location:
Exhaust Gas Recirculation (EGR) System - Range/Performance Problem
Causes:
-Hose leak/blockage.
-Wiring harness.
-Exhaust gas recirculation (EGR) valve/solenoid.
Error Code: P0473
Discription:
Exhaust Gas Pressure Sensor - High Input
Causes:
- Wiring short to positive.
- Exhaust gas pressure sensor (G450).
- Engine control module (ECM).
Error Code: P0674
Description:
Glow Plug Cylinder 4 Circuit - Circuit Malfunction
Causes:
-No Pre-Glow Period.
-Poor Cold Starting.
-Glow Plug Wiring faulty.
-Poor connection.
-Relay.
-Glow plug control module.
-Glow Plug faulty.
-Engine control module (ECM).
Solutions:
Check Glow Plug Wiring.
Check Glow Plug.
Error Code: P0675
Description:
Glow Plug Cylinder 5 Circuit - Circuit Malfunction
Causes:
-No Pre-Glow Period.
-Poor Cold Starting.
-Glow Plug Wiring faulty.
-Poor connection.
-Relay.
-Glow plug control module.
-Glow Plug faulty.
-Engine control module (ECM).
Solutions:
-Check Glow Plug Wiring.
-Check Glow Plug.

Sep 20, 2014 | 2008 Dodge Sprinter

1 Answer

Reduced power light trailblazer


Sounds like a bad altenator. Usally accompanied by starting problems. To check the altenator, disconnect the battery while the vehichle is running, if the engine dies when you disconnect the battery, then you'll be looking at a bad altenator. If altenator checks good, then post back with a more detailed description of symptoms.

Mar 17, 2014 | Cars & Trucks

1 Answer

Well lets see...I took my 2002 blazer in for a tune up only (146000 miles) got a call from the mechanic that my belt needed to be change and I had an oil leak which was leaking onto my plugs. Got it back...


Take it to a qualified mechanic!!!!! Whoever you used up to now is a **** and shouldn't be in the auto repair business. The oil leak on the plugs is from a bad valve cover gasket, did they change it?
The diagnosis of the crankshaft being loose is ridiculous, even with 146K miles.

Sep 07, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

2008 Chevy Trailblazer Error codes B0455, B0131, and P0449? The check engine light is on, but it's running fine.


{: ) If your vehicle is equipped with an air suspension system, one possible source for this combination of codes is the wiring along the air compressor located on a bracket on the left rear chassis frame, near the spare tire. Carefully pull the plastic conduit off of the wires, and inspect the wires for any cuts / abrasion or possibly a resulting corrosion (due to a short or open circuit & water exposure)

Jun 01, 2011 | 2008 Chevrolet Trailblazer

2 Answers

Engine runs ruff


you may have a valve or valves leaking which will cause it to run rough, have a leak down test done or a compression test

Jun 22, 2009 | 1994 Volvo 940

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