GMC Envoy - Answered Questions & Fixed Issues


try changing out the PCM. its responsible for transmission operation. bad PCM means dumb transmission.

GMC Envoy Cars &... | Answered on Jun 20, 2020 | 132 views


Fuse number 13 is the cigarette lighter fuse, it is in the engine compartment fuse box on your GMC Envoy. To know more about where each fuse is and what it does, follow this link: https://fuse-box.info/gmc/gmc-envoy-2002-2009-fuses-and-relay

2003 GMC Envoy | Answered on May 25, 2020 | 3,549 views


Firing order is 1, 5, 3, 6, 2, 4. Number 1 cylinder is up front. Why would you need the firing order, this engine does not have plug wires, each plug has its own coil pack, each coil pack is controlled by the computer.

GMC Envoy Cars &... | Answered on May 25, 2020 | 489 views


I did the procedure vehicle still didn't start.I did notice the security light did no blink but stayed solid before it when out.Im lost ..

GMC Envoy Cars &... | Answered on Dec 29, 2019 | 4,392 views


Idle control module isn't working.

2004 GMC Envoy | Answered on Nov 21, 2019 | 60 views


The carbon cannister hoses may be cracked, there might be a rubber fuel line hose leaking too.

2003 GMC Envoy | Answered on Nov 15, 2019 | 174 views


Make sure it's not on the sepentine belt causing it to slip . Possible that it got into a connector I guess . Check that you didn't bump into a connection also .

2003 GMC Envoy | Answered on Oct 28, 2019 | 40 views


Do NOT use it on road you will brake something
Is it switches or leavers for your controls

2005 GMC Envoy | Answered on Oct 28, 2019 | 55 views


Natalie, our 4.2 engine only likes 1 sparkplug. AC Delco 41-103. This Iridium plug comes pre-gapped, to near the specs Mike posted. Don't try and gap these particular plugs yourself, easy to ruin them.

2004 GMC Envoy | Answered on Sep 20, 2019 | 34 views


Try stepping on the brake when trying to shift with the key on. Then try starting im neutral or other gears to see if the neutral safety switch is bad in park. You may have a bad wire from the battery to power distrubution or bad ground. So many things it could be.

2004 GMC Envoy | Answered on Sep 14, 2019 | 23 views


watch this video it will help you to remove rear spoiler.


https://www.youtube.com/watch?v=J5RnJDAIPsU

2003 GMC Envoy | Answered on Aug 24, 2019 | 275 views


This would be the shift linkage bushing, very common. When switching through the gears, the gear selector lights in the dash probably don't move from P.
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2003 GMC Envoy | Answered on Aug 21, 2019 | 35 views


There is a linkage hooked to the indicator that may be broken

2003 GMC Envoy | Answered on Jul 23, 2019 | 1,296 views


4.2L Engine the thermostat and the neck where the hose goes on is one unit $25 at autozone
  1. Remove the necessary coolant from the radiator.
  2. Remove the alternator, Loosen the outlet hose clamp at the thermostat housing. Remove the outlet hose from the thermostat housing.
  3. Remove the thermostat housing bolts.
  4. Remove the thermostat housing from the engine block.
  5. Clean all of the surfaces of the thermostat housing.
  6. Clean the sealing surface of the engine block.

2002 GMC Envoy | Answered on Aug 06, 2019 | 4,724 views


There may be four. Bank 1, sensors 1, 2 and 3 and bank 2 sensor 1. This link will help you find the sensor that you need.

https://www.youtube.com/watch?v=vAxuP9UVQPs

2002 GMC Envoy | Answered on Jul 26, 2019 | 51 views


was it jerking before change out --check installation of unit

2006 GMC Envoy | Answered on Jul 06, 2019 | 37 views


Could be many things. But spark and fuel most common. 1st, is car getting adequate fuel? Check fuel pump or fuel filter. Then spark. Use spark plug tester for spark. Then mechanic.

2003 GMC Envoy | Answered on Jun 25, 2019 | 44 views

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