2004 envoy xuv midgate
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Filed Under (Audi) by admin on 15-09-2009
Check the following wire connection for open circuit according to wiring diagram:Relay carrier in E-box, plenum chamber, position 3Terminal Harness connector atignition coils Terminal 8 1 Specified value: Wire resistance max 1.5 – If necessary, repair wire connection. Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 – 1.8 Liter 4-Cyl. 5V Turbo Generic Scan Tool, Engi…Page 5 24-158 If no malfunctions are found in wires: – Check voltage supply of Motronic Engine Control Module (ECM) voltage supply relay – J271 – Page 24-158 . – Check activation of Motronic Engine Control
Module (ECM) voltage supply relay – J271 – Page 24-159 . Checking voltage supply If specified value is not obtained:
- Connect multimeter for voltage measurement as follows. Relay carrier in E-box, plenum chamber, position 3
Filed Under (Ford) by admin on 11-05-2010
Some 1999-2004 Navigator, 2002-2003 Blackwood, 2003-2005 Aviator, 2003-2004 Marauder and 2003-2004 Mustang vehicles built before 12/19/2004 equipped with 4.6L 4V/5.4 4V engine may exhibit a runs rough, lacks power, and engine misfire, prompted by a MIL light and DTC codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0316. ACTION Diagnose engine for engine misfire concern. If diagnostics determine an engine misfire which is characterized by leakage through exhaust valve(s), only replace the affected cylinder head(s). SERVICE PROCEDURE
Filed Under (Hyundai) by admin on 25-04-2010
1. At the crank position sensor, check for battery voltage to be present on the Red wire with the key on and cranking. The Black wire should be a good ground and the Blue wire should have 5 volts on it from the computer. One may have to disconnect the crank sensor to check for the 5 volt reference. 2. During crank look for a good 5 volt square wave signal on the Blue wire. 3. Check at the ignition coils for good battery voltage key on and cranking. If there is a loss of voltage during crank check the ignition failsafe relay. 4. Check for any stored engine codes. Crankshaft Position (CKP) Sensor Ignition Failsafe Sensor The ignition failsafe sensor supplies battery voltage to the ignition coils. The ignition coils can look like they have good battery voltage key on but during crank the ignition failsafe relay can stop sending voltage to the ignition coils.
Filed Under (Buick) by admin on 24-12-2010
#PIP4015: SES Light Due To DTCs P0105 P0106 And/Or P0506 – Clean Throttle Body – keywords body clean code codes deceleration DTC engine erratic idle intermittent low PCM plate surge unstable 2004-2007 Buick Rainier 2002-2007 Chevrolet TrailBlazer 2004-2007 Chevrolet Colorado 2002-2007 GMC Envoy 2004-2007 GMC Canyon 2002-2004 Oldsmobile Bravada 2006-2007 HUMMER H3 2005-2007 Saab 9-7X Condition/Concern: On rare occasions, a SES light may be experienced due to DTCs P0105, P0106, and/or P0506. There may or may not be an idle complaint accompanying the SES light. This may be due to excessive carbon build up in the throttle body. Recommendation/Instructions: If the SI diagnostics do not isolate a cause for this concern, clean the throttle body bore and plate for evaluation.
Filed Under (Ford) by admin on 16-12-2010
FORD: 2004-2005 Thunderbird, Explorer LINCOLN: 2004-2005 LS, Aviator MERCURY: 2004-2005 Mountaineer This article supersedes TSB 05-15-4 to correct the Service Procedure. ISSUE Some 2004-2005 vehicles built prior to 09/23/2004 and equipped with the 5R55S transmission, may exhibit a delayed or harsh reverse engagement. This condition may be due to improper pressure control. ACTION It may be necessary to replace the solenoid body assembly. Refer to the following Service Procedure. SERVICE PROCEDURE NOTE INSTALLING TRANSMISSION ADDITIVE WILL PREVENT THE SYMPTOM ON SOLENOIDS THAT DO NOT YET EXHIBIT THE CONDITION BUT WILL NOT RESOLVE THE CONDITION IF IT ALREADY EXISTS. LINCOLN LS AND THUNDERBIRD ONLY 1. Lower the transmission cross member and transmission to gain access to the pressure control solenoid-C (PCC) port. DO NOT disconnect the drive shaft. 2. Install pressure gauge per Step 2 of “DIAGNOSTICS”, below. 3. Reinstall cross member and snug the fasteners for diagnostic purposes only. 4. Proceed with the “DIAGNOSTICS” section of this TSB. 5. After the TSB repair is completed, torque the cross member fasteners to 41 lb-ft (55 N•m). DIAGNOSTICS – ALL VEHICLES 1. Remove pressure tap plug at PCC port (Figure 1).