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Intermittent Slow to Cool HVAC Performance Concerns in High Ambient Temperatures

Filed Under (Other Manuals) by admin on 23-12-2013

Download Models: 2004-2005 Buick Rainier 2002-2005 Chevrolet TrailBlazer Models 2002-2005 GMC Envoy Models 2002-2004 Oldsmobile Bravada 2005 Saab 9-7X Condition Some customers may comment on slow to cool Air Conditioning (A/C) performance or high A/C outlet temperatures after start up or that the A/C system is not cooling sufficiently, especially in high ambient temperatures. This may be an intermittent condition and the performance of the Heating, Ventilation and Air Conditioning (HVAC) system may not meet customer expectations. Cause This condition may be caused by the response of the Electro-Viscous (EV) fan clutch and can be related to airflow across the condenser. This low A/C system performance can occur for longer periods of time if the vehicle is allowed to idle or is driven in low speed conditions. The response of the EV fan clutch will affect A/C system performance. As higher road speeds are attained, the increased airflow across the condenser will usually improve A/C system performance and the response of the EV fan clutch.… Read More

2001-2002 Honda Odyssey Idle Fluctuation and/or the MIL Is On With DTC P1129

Filed Under (Honda) by admin on 02-02-2014

Download : 2001-02 Odyssey – ALL 2003 Odyssey – From VIN 5FNRL1…3B000001 thru 5FNRL1…3B159953 2003 Odyssey – From VIN 2HKRL1…3H500001 thru 2HKRL1…3H514354 2003 Pilot – From VIN 2HKYF1…3H500001 thru 2HKYF1…3H520648 Idle Fluctuation and/or the MIL Is On With DTC P1129 and/or P0505 (Supersedes 04-007, Idle Fluctuation With DTC P1129 , dated February 6, 2004, to update the information marked by the black bars) SYMPTOM The idle fluctuates, and/or the MIL is on with DTC P1129 (high manifold absolute pressure [MAP] sensor signal) and/or P0505 (faulty IAC valve). PROBABLE CAUSE The idle air control (IAC) valve sticks open, the power steering pressure switch wire is broken, or both. CORRECTIVE ACTION Replace the IAC valve, repair the power steering pressure switch wire, or do both. DIAGNOSIS 1. Start the engine, and let it idle until it warms up. Does the idle fluctuate, or is there a customer complaint of an intermittent idle fluctuation?… Read More

2003 HONDA PILOT DTC Troubleshooting

Filed Under (Honda) by admin on 19-12-2013

Download P0505 (14) DTC P0505: Idle Control System Malfunction NOTE: If DTC P1519 is stored at same time as DTC P0505, troubleshoot DTC P1519 first, then recheck for DTC P0505. 1. Start the engine. Hold the engine at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on. 2. Check the engine speed at idle with no-load conditions: headlights, blower fan, rear window defogger, radiator fan, and air conditioner off. Is the engine running at 730+/-50 rpm? 3. Disconnect the idle air control (IAC) valve 3P connector. Does the engine speed increase or fluctuate? 4. Turn the ignition switch OFF. 5. Remove the intake air duct from the throttle body. 6. Start the engine and let it idle. 7. Put your finger on the lower port (A) in the throttle body. Does the engine speed drop below 780 rpm? YES – Intermittent failure, system is OK at this time.?… Read More

1999-2003 FORD SUPER DUTY F SERIES HIGH PRESSURE OIL PUMP LEAK

Filed Under (Ford) by admin on 18-12-2013

Download FORD: 1998-2003 E SERIES 1999-2003 SUPER DUTY F SERIES 2000-2003 EXCURSION, F-650, F-750 This article supersedes TSB 03-21-50 to update the WARNING service procedure and illustration. DO NOT REMOVE OR ATTEMPT TO REPAIR A LEAK AT THE PLUG PICTURED IN LOWER LEFT ISSUE CORNER OF FIGURE 1, OR DAMAGE TO THE Some 1998-2003 E-Series, 1999-2003 Super Duty, PUMP WILL RESULT. 2000-2003 Excursion, and 2000-2003 F650/750 1998-2003 E-SERIES HIGH PRESSURE OIL vehicles equipped with a 7.3L Diesel engine may PUMP ACCESS PROCEDURE (DISASSEMBLY) exhibit an oil leak at the high pressure oil pump outlet fittings and/or end plug (see Figure 1). The 1. Remove the Intake Air Resonator. For leak may appear to be a rear main crankshaft seal, additional information, refer to Section 303-12 in oil pan gasket, or other engine oil leak due to the the appropriate Workshop Manual. drain hole machined in the crankcase valley which allows any oil in the valley to run down the back of 2.… Read More

How To Build a High Performance Cummins Diesel

Filed Under (Other Manuals) by admin on 29-12-2013

Download CEO/ Diesel Injection of Pittsburgh Keep in mind while reading this document that it is a gathering of all the articles Bruce has written over the last ten years. There may be some old prices discussed so, to get the latest pricing, check the main page. If you have any questions feel free to call us at 724-274-4080 and we can discuss your horsepower needs. Please have your CPL#. If you are looking for upgrades for your Electronic Celect/Celect Plus Cummins engine visit our Pittsburgh Power site at Pittsburghpower.com. HOW TO BUILD A HIGH-PERFORMANCE CUMMINS DIESEL ENGINE This is a very controversial subject and 99% of the mechanics who build diesel engines will disagree with what we have to say and will probably refuse to build the engine for you. For the owner-operator who loves horsepower do not give up when you speak to the negative mechanic. There are a few good shops throughout the states that will build the ultimate performance engine.… Read More

2001 Ford Escort ZX2 Engine – Vibration While Idling

Filed Under (Ford) by admin on 14-12-2013

Download 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3 Engine – Vibration While Idling. ^DRIVEABILITY – IDLE VIBRATION – VEHICLES EQUIPPED WITH 2.0L SPI OR ZETEC ENGINE ONLY ^ENGINE – IDLE VIBRATION – VEHICLES EQUIPPED WITH 2.0L SPI OR ZETEC ENGINE ONLY. FORD: 1997-2002 ESCORT 1998-2003 ESCORT ZX2 MERCURY: 1997-1999 TRACER This article supersedes TSB’s 00-5-9 and 02-21-12. ISSUE This TSB article is being republished to assist in diagnosing idle vibration. ACTION Diagnose and repair idle vibration conditions by referring to the following idle vibration Service Procedures. SERVICE PROCEDURE NOTE THE PROCEDURE CONTAINED IN THIS TSB ARTICLE MAY NOT COMPLETELY ELIMINATE ALL VIBRATION FROM THE VEHICLE. SOME VIBRATION IS INHERENT IN 1-4 ENGINE DESIGNS, SUCH AS THE SPI AND ZETEC 2.0L. THIS PROCEDURE IS DESIGNED TO REDUCE THE AMOUNT OF VIBRATION EXPERIENCED BY THE CUSTOMER. PROCEDURE FOR 2003 ESCORT ZX2 PROCEDURES FOR 1997-2002 ESCORT, ESCORT ZX2 AND TRACER ^DRIVEABILITY – IDLE VIBRATION – VEHICLES EQUIPPED WITH 2.0L SPI OR ZETEC ENGINE ONLY ^ENGINE – IDLE VIBRATION – VEHICLES EQUIPPED WITH 2.0L SPI OR ZETEC ENGINE ONLY 1.… Read More

2009-2010 Ford Expedition LOW FREQUENCY ENGINE KNOCKING NOISE AT HOT IDLE

Filed Under (Ford) by admin on 31-12-2013

Download 2009-2010 Ford Expedition LOW FREQUENCY ENGINE KNOCKING NOISE AT HOT IDLE. FORD: 2009-2010 Expedition, F-150 LINCOLN: 2009-2010 Navigator. 6. Open Data Logger. ISSUE Some 2009-2010 F150 vehicles equipped with a 7. Select Powertrain Engine. 4.6L 3V or 5.4L 3V engine, Expedition and Navigator vehicles may exhibit a low frequency 8. Select PCM Data Logger. knocking noise from the engine at hot idle only. The 9. Clear the preselected items by clicking the noise is predominately heard from the right front eraser icon button. wheel well area and/or the right hand (RH) engine cam cover. This noise may be generated from the 10. Select variable cam timing desired angle RH variable camshaft timing (VCT) phaser number (VCT_DSD). assembly. This procedure was created to diagnose the RH VCT phaser assembly. 11. Go to live display and press the tick mark. 12. Make sure the parameter identification (PID) is ACTION highlighted with the dark lines above and below Follow the Service Procedure steps to correct the the data being displayed.… Read More

Ford Mustang Fuel Injection Conversion

Filed Under (Ford) by admin on 04-05-2012

Download These instructions will provide the basic and necessary information to allow a carbureted 302 to be converted to SEFI Fuel Injection. There are several different types of fuel injection conversions available, however, this instruction will concentrate on the High Output, MASS-AIR setups found on the 92-93 Ford Mustangs. There are two main advantages to using this type of setup. The first advantage is that the computer in the MASS-AIR system will automatically compensate for any engine modifications that have been done prior to the installation of the fuel injection system. The second advantage is that fuel is sent to each cylinder individually only during the appropriate firing cycle, meaning that fuel is sent sequentially to each cylinder only when the spark plug is ready to fire. This makes for an extremely efficient firing cycle . SEFI stands for Sequential Electronic Fuel Injection. This system is complex to be sure, therefore, this instruction is going to skip all the technical mumbo-jumbo, and focus on the bare essentials to install this system properly.… Read More

LM7, L59 or L33 Engines with Cold Start Rough or Incorrect Idle, Misfire, Malfunction Indicator Lamp (MIL) or Flashing Requiring O2 Sensor Replacement (Reprogram PCM)

Filed Under (Other Manuals) by admin on 28-12-2013

Download Models: 2004-2005 Cadillac Escalade 2004-2005 Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe 2005 Chevrolet Silverado Hybrid (HP2) 2004-2005 GMC Sierra 1500, Yukon, Yukon XL 2005 GMC Sierra Hybrid (PH2) with Vortec 5300 5.3L V-8 Engine (VINs T, Z, B — RPOs LM7, L59, L33) Condition Some customers may comment on a Malfunction Indicator Lamp (MIL) On or that the MIL is flashing. An actual engine misfire may or may not be felt along with an incorrect idle speed. Typically this occurs during cold winter months, on cold engine starts. Some vehicles may have been previously serviced for the same condition. Technicians may also find the following DTCs stored with the Tech 2® P0131, P0133, P0134, P0137, P0138, P0140, P0151, P0153, P0154, P0157, P1133, which may be in conjunction with P0171, P0174, P0300 and P1138. Cause Water shock occurs when water droplets are present in the exhaust. The water in the exhaust contacts the sensor element inside the HO2 sensor, causing the HO2 sensor element to crack.… Read More

1996 Chevrolet Chevy K Pickup Ignition Coil Control Circuit High Voltage

Filed Under (Chevrolet (Chevy)) by admin on 21-12-2013

Download 1996 Chevrolet Chevy K Pickup – 4WD | Chevy Pickup, GMC Pickup, Suburban, Tahoe, Yukon (VIN C/K) Service Manual DTC P1351 Ignition Coil Control Circuit High Voltage. Circuit Description The enhanced ignition system uses the crank sensor in order to provide the timing input to the VCM. The VCM uses this reference pulse in order to determine the individual ignition spark timing for each cylinder. Once the VCM calculates the ignition timing, the ignition coil module on the IC circuit receives the timing signal. Each timing pulse received by the ignition coil module on the IC circuit triggers the coil module in order to operate the ignition coil. The secondary ignition voltage is induced, and then the secondary ignition voltage is sent to the distributor for distribution to each spark plug. This DTC is a type A DTC. The IC signal voltage ranges from about 0.5 volt to 4.5 volts.… Read More

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