Diagnosing Digital EGR Valves
In the 1980's, computer-controlled solenoids began to replace vacuum switches in EGR systems. • Multi-stage (Used on various late-model General Motors applications, this type has two or three • Linear (Uses a small stepper motor instead of solenoids or a vacuum diaphragm to open the exhaust … Retrieve Here
DTC P0216 Injection Timing Control Circuit – Circuit Description
Extends the stepper motor. To advance injection timing the PCM retracts the stepper motor. © 2009 General Motors Corporation. All rights reserved. — Go to Step 17 Go to Step 14 14 Replace the crankshaft position sensor. … Read More
Switch – Wikipedia, The Free Encyclopedia
When a strongly inductive load such as an electric motor is switched off, the current cannot drop instantaneously to zero; a spark will jump across the opening contacts. … Read Article
Jeep Cherokee High Idle And Clicking – DIY Auto Repair Help …
My question: is there any way to confirm this diagnosis, and if so, what’s the best way to remove and replace that universal joint? The car idles fast, usually around 1,500 rpm. suspect the idle speed stepper motor and\or throttle position sensor, but I don’t know how to determine if either or … Read Article
015A: Noise Coming From Instrument Panel Cluster (Replace …
#04-08-49-015A: Noise Coming From Instrument Panel Cluster (Replace Instrument Panel Instrument clusters may contain stepper motor gages that can make © 2008 General Motors Corporation. All rights reserved. … Return Document
Handling No Trouble Code Problems – DIY Auto Repair Help …
Check Idle Control Valve (IAC) Motor Operation. PURPOSE: The purpose of the Idle Control Valve (IAC) valve assembly is to control engine idle speed If operation is not as specified, replace the IAC valve. As always, check the service manual for the proper procedures and specifications for your … Read Article
ENGINE CONTROLS PART #3 – IDLE SPEED CONTROL
These systems are referred to as: • Stepper motor type • Rotary solenoid type • Duty control ACV type • On-off control VSV type Step Motor Type ISC Valve The Step Motor type ISCV is located on the intake air chamber or throttle body. … Doc Viewer
Troubleshooting Problems With Engine Idle
The Fix: Replace accelerator pump or replace carburetor. There may be a vacuum leak. The Fix: Check and replace vacuum lines as required. The fuel pressure regulator may be operating at too low a pressure. … Read Article
Initial Calibration Of The TBI
stepper motor is, in relation to fully closed or fully open. When the engine is shut off, the IAC will go fully closed and then excessive oil usage. The only cure for these problems is to replace the … Document Retrieval
FULL SWEEP STEPPER MOTOR INSTRUMENT KIT INSTRUCTION MANUAL …
FULL SWEEP STEPPER MOTOR INSTRUMENT KIT INSTRUCTION MANUAL policy of New Vintage to quickly replace any items that may be missing in a timely tion Most GM Vehicles After. 1965 0-9: 0 1/ 8 Most Ford & Chrysler … Visit Document
2002 Chevrolet TrailBlazer – Aurora IL – YouTube
6:14 Watch Later Error GM Stepper Motor Replacement and Instrument Panel Disassembly by mlekowhat 6,890 views 10:00 Watch Later Error How To Install Replace Front Wheel Hub Bearing GM Front Wheel Drive PART 1 1AAuto.com by 1aauto 135,900 views … View Video
Numerical Control – Wikipedia, The Free Encyclopedia
In 1959, General Motors started an experimental project to digitize, store and print the many design has its roots in EMC and PC based control, but has evolved to the point where it can replace gears in order to provide highly accurate movements, or in modern designs, direct-drive stepper motor … Read Article
OREGON FUEL INJECTION, INC.
This is a simple first step and is less in depth than the GM If you have a no start and C-Time is 1.95ms (94-95) or 0.01ms (96-2000) replace the DTC34 (P0216) injection timing stepper motor, watch the stepper motor and make sure it … Retrieve Doc
GM Speedometer Repair Ecourse
Basically the same for all 03 -06 GM instrument clusters. point to set your needles back exactly where they were originally after you replace the stepper Close up of a defective old generation stepper motor. … View Document