2006 GMC Envoy Denali - Page 8 - Answered Questions & Fixed issues

I googled: GMC 2002 Envoy SLE code 1221 n p1516 Buy I see no clear answer, you may find one though.

we just dealt with this,why did you post again?didnt like my answer?? just wait and others would of seen it too,waste

P060e Control Module Throttle Position System Performance. Service manual says to check all voltage and ground inputs to the ECM for an open circuit or high resistance. The computer will clear this code after three consecutive ignition cycles with no failures. Hope this helps out some.

the sensor to replace is the HO2S sensor which is different to an O2 sensor. (has a different function) code p0300 is random/multiple misfires as misfires are from the electrical components you did not pay attention to items like low fuel pressure and faulty injectors which also cause random misfires.

sounds like the blower doors on that side are not opening check blending door accuator

check the engine family (4gh6 or what ever) later engines in the same family will fit and will probably have increased power. Problems may arise from the sensor s and the ECM as there may be differences. A good place to check out is google-type in your engine make and size and read wikipedia as they list vehicles with engine families and power ratings.

Rip it out restore the wiring to original and leave well alone these things always give trouble and no end of questions on here ,put car in the garage to keep it warm ,once started drive off straight away ,leaving the engine running to warm the car up will shorten the engine life ,do what the swedes do and fit a small electric heater into the cylinder block ,park car in the garage and dump the junk in their,then fit a block heater and using a timer to turn it on to wamr the engine a hour before you leave for work .

Torque converter cluts is stuck on. Replace the solenoid.

ONE ON PEDEL ONE ON THROTTLE BODY ON MOTOR

Look for a bound up shift cable.

Silver tube that runs from firewall to compressor some go into radiator area

Yes and no. It sounds like you have a wiring problem. The alternator output could be 14 volts and only one or two amps, but that would be enough to kill the warning light. Its more likely the alternator is charging but the current is not reaching the battery.

here is a link with a couple of videos to watch. https://www.youtube.com/watch?v=gBlBR54itw0

Check the A/C Cluch . This is a common problem on today's Cars . If that is not it , It is most likely your Idler pulley for the Serpentine Belt , once they get some miles on them or a little dirt they start to be trouble . Hope this helps!!! Grant

EECS.pruge flow.

I would start by replacing the battery in the key fob remote that goes on your keychain. You can take it to most auto part stores and they will test/replace the battery in the device. It's a fairly cheap fix. If the device still isn't working after a new battery, then you will need to replace the fob. Some auto part stores like, AutoZone, will carry some of them but some you need to go to your local GMC dealer.

Cigarette lighter?

The gas pedal could beva drive by wire, meaning there is no physical connection between it and the engine. You did not say the year of your Envoy. If it is there may be a bad accelerator position sensor. If is not drive by wire you may have an issue with your engine. Either way have it checked by a technician that knows you make of vehicle.

bulb in the dash. a very timely repair

Hello, to remove the thermostat from the housing , follow this steps:

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.

Thanks