GMC Envoy - Popular Questions, Answers, Tips & Manuals


Instrument cluster erratic warning lights, gauges stop working.

This is a common problem with an easy fix. If you are experiencing weird behavior from the instrument cluster it quite possibly is caused by corrosion on the circuit board on the back on the instrument cluster. To fix this you need to remove the instrument cluster. Refer to YouTube for this there are lots of videos shopping this, This step is much easier than it sounds, there are 4 screws and one plug. Inspect the circuit board you should see about a dozen places that have a dusty/crusty appearance (see the attached image). Clean the corrosion using isopropyl alcohol and a cotton swabs. Reinstall the cluster and your good to go.

on Oct 15, 2019 | 2004 GMC Envoy

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

2005 GMC Envoy | 55 views | 0 helpful votes

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 | 41 views | 0 helpful votes

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 | 37 views | 0 helpful votes

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 | 24 views | 0 helpful votes

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.

2003 GMC Envoy | 35 views | 0 helpful votes

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.

2002 GMC Envoy | 52 views | 0 helpful votes

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 | 44 views | 0 helpful votes

The service and repair manual with diagram will provide step by step help to locate and fix the problem on your own easily and you will get the manual from the given link Home Toolsnyou

2002 GMC Envoy | 59 views | 0 helpful votes

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

2006 GMC Envoy | 37 views | 0 helpful votes

Google your question.
About 280,000 results (0.61 seconds)

GMC Envoy Cars &... | 144 views | 1 helpful votes

check connectors fuses and relays ----also check the connections ribbon connections and unit under rear seat drivers side --lift seat like your going to fold down

2002 GMC Envoy | 84 views | 0 helpful votes

yes pulley free wheels--- when clutch is engaged [turn on ]then compressor is turning as well

2004 GMC Envoy | 44 views | 0 helpful votes

The best way to fix the problem is getting help from service and repair manual with pictures and diagram which will give you step by step help to locate and fix the problem on your own and you will get the manual from the given link

2002 GMC Envoy | 61 views | 0 helpful votes

Your anti-theft system kicked in for some reason. If you shut it off, the engine will turn over but will not start. A Chevy or GMC dealership is usually required to reset the system, but you'll have to bring it to them. Dealer + Towing = BIG $$$$. A less expensive option would be a mobile mechanic (call them first) or a licenced locksmith. Either way you'll need to show ID and proof of ownership.

2002 GMC Envoy | 48 views | 0 helpful votes

Your drive train may be in limp mode, which indicates something seriously wrong with it (engine or transmission). Check for trouble codes with a code reader.

GMC Envoy Cars &... | 24 views | 0 helpful votes

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