Question about 2003 GMC Envoy

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Why does my 2003 gmc envoy only go to 2000 rpm when i push gas to the floor

Thought it was converter so i pulled the o2 sensor out of the manifold still no

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Here are a few thing's to check ! Besides these checks , does the throttle plate open all the way ? No binding ? You'll need to take the air cleaner assembly off to see the throttle plate. How many miles on it, possible timing chain.

Posted on Dec 06, 2014

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Posted on Jan 02, 2017

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I have a 2005 gmc envoy xl the rpm's are real low and it wont go over 15 miles per hour


Could be catalytic converters clogged. Remove the pre O2 sensors, or loosen the exhaust at the manifold. If it goes faster, replace the cats. Have the codes read.

May 21, 2016 | GMC Cars & Trucks

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Code p1400 gmc enjoy 2007 what is the problem in this code


Definition of Diagnostic Trouble Code P1400 Audi: EGR Valve Circ Electrical Malfunction BMW: Heated Catalyst Battery Voltage or Current too Low during Heating (Bank 1) Chrysler: Manifold Differential Pressure Sensor Circuit Malfunction Dodge: Manifold Differential Pressure Sensor Circuit Malfunction Ford: Differential Pressure Feedback EGR Circuit Low Input Hyundai: EGR System Monitor Malfunction Infiniti: EGRC Solenoid/V Jaguar: Exhaust Gas Recirculation Valve Position Control Jeep: Manifold Differential Pressure Sensor Circuit Malfunction Lexus: Sub-TPS Malfunction Lincoln: Differential Pressure Feedback EGR Circuit Low Input Mazda: DPFE Sensor Circuit Low Input Mercedes: EGR Switchover Valve Malfunction (C230 Only) Mercury: Differential Pressure Feedback EGR Circuit Low Input Mitsubishi: Manifold Differential Pressure Sensor Circuit Malfunction Nissan: Differential Pressure Feedback EGR Circuit Low Input Subaru: Fuel Tank Pressure Control Solenoid Circuit Low Input Toyota: Sub-Throttle Position Sensor Malfunction Volkswagen: EGR Valve Circ Electrical Malfunction

Jun 20, 2015 | 2007 GMC Envoy Denali

1 Answer

Trying to locate the oxygen sensor in a envoy


There are two O2 sensors, one on the exhaust manifold on the right side (passenger side) of the engine, and one just after the catalytic converter.

Feb 22, 2014 | GMC Envoy Cars & Trucks

1 Answer

Where are the 02 sensors located on a 2003 GMC Envoy


Hi, they are located in the exhaust system, before the converter, and usually nearer to the manifold. Very simple to locate...
Hope it helps.....

Jul 11, 2011 | 2003 GMC Envoy

1 Answer

How many oxygen sensors in a 2003 GMC Jimmy 4.3L V6


There are 4 O2 sensors. 2 are located before each catalytic converter and 2 are located after the converters.

Apr 02, 2010 | 2003 GMC Envoy

1 Answer

Where is the electrical connection for the post converter o2 sensor


Simply goto the o2 sensor in question, and follow the wires back till you find the connector.

Oct 09, 2009 | 2003 GMC Envoy Xl

1 Answer

Losing power when the a/c is running


Hi Deettec

your problem seems very easy :) hope this one work with your envoy. Just buy AC DELCO carburetor tune-up conditioner.

How you use it: engine running , AC off please

1. detached the big black airflow hose which is attached in the mannifold of the engine block.

2. ask your friend to step on the gas pedal and set the rpm steady in 2000 rpm only.

3. then spray vigorously in 8 seconds the inside circle opening of mannifold while your friend steady step on gas pedal with steady 2000 RPM only.

4. after you spray, let your freind continue on gas pedal with 2000 rpm for 15 more seconds.

5. attached back the airflow big black hose to the manifold and you are ready to roll with your AC on.

Jul 13, 2008 | 2004 GMC Envoy

1 Answer

Envoy 2004 idle speed


Hi
your problem seems very easy :) hope this one work with your envoy. Just buy AC DELCO carburetor tune-up conditioner.

How you use it: engine running , AC off please

1. detached the big black airflow hose which is attached in the mannifold of the engine block.

2. ask your friend to step on the gas pedal and set the rpm steady in 2000 rpm only.

3. then spray vigorously in 8 seconds the inside circle opening of mannifold while your friend steady step on gas pedal with steady 2000 RPM only.

4. after you spray, let your freind continue on gas pedal with 2000 rpm for 15 more seconds.

5. attached back the airflow big black hose to the manifold and you are ready to roll with your AC on.

if this one doesnt work, please scan your envoy by scanner called TECH II. and find out.

Jul 09, 2008 | 2004 GMC Envoy

1 Answer

Engine Power


Hi your problem seems very easy :) hope this one work with your envoy. Just buy AC DELCO carburetor tune-up conditioner.

How you use it: engine running , AC off please

1. detached the big black airflow hose which is attached in the mannifold of the engine block.

2. ask your friend to step on the gas pedal and set the rpm steady in 2000 rpm only.

3. then spray vigorously in 8 seconds the inside circle opening of mannifold while your friend steady step on gas pedal with steady 2000 RPM only.

4. after you spray, let your freind continue on gas pedal with 2000 rpm for 15 more seconds.

5. attached back the airflow big black hose to the manifold and you are ready to roll with your AC on.

Jun 25, 2008 | 2004 GMC Envoy

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