20 Most Recent 2005 GMC Sierra 1500HD - Page 8 Questions & Answers

Is there a connector for trailer lights on the back of the truck? If so, that is a common spot for issues.

is this a preSALES question or post installed. or what? or post intall and lost a FOB? tell the full story here, we can not guess. what is this Python thing (a aftermarket remote start kit) ask GM this? most cars this new the manual states that 3rd party remote starts will not work ask GM first. some sellers flat out lie to get money and know many customers will not return the unit or say there is no warranty many states now this down grade is *******. the makers online help is useless (faq) but is because of extreme complexity here(vast cars and years and models) the answer is call them on a phone or ask the authorized installer Python. all modern cars have and IMMO and this IMMO PASSKEY will not like any kind if bogus remote starts. the modern car used very complex rolling codes that are kept secret, even by law now. ask them? https://pythoncarsecurity.com/Products/ one of the most complex topics on any modern car 10x that with IMMO

OK NOW A SYMPTOM. CRANKS BUT WILL NOT STARTkey is bad,IMMO lamp glowing telling you the key is bad.do you have 5 pound key chain that wrecks all car locks? my guess no but the battery in truck is low underhood, 12vdc,car has Throttle Actuator Control throttle by wire and will not start or only idles or limits speed to 20mph if it fails TBW, TBW (TAC) has many failure modes and one is not to drive over people if Throttle pots (x4 )say its at WOTwide open throttle. or the silly motor fail and is jammed i the TB throttle body.there are 50 causes of no starts.and up to 20 tests to find it using real tools.guessing 49 times is costly.I never pull any pump on a whim and take bath in fuel the pump tests are easy on car ask.the PCM cuts fuel for many reasons, 6 at least.IMMO tops the list.fuses blownlean the PCM now,. do not fail to scan any modern car or go broke fast or have huge down times and piles of wasted labor or worse add wrong or bad parts or not calibrating them first. per service manual...SCAN ITI CRANK IT AND AT STALL i SCAN IT. NOW, KEY STILL ON AND THE DTC'SROLL OUT , MOST THE TIME.

are you confused,????? its not a GM./ Vehicle Type: PASSENGER CAR Model Year: 2008 Make: TOYOTA Model: Corolla Body Class: Sedan/Saloon engine 1.8 liter, 1ZZ-FE 2T1br32 2= country 2= canada ,1, 4, 5 United States T = toyota 1= brand of toy B= sedan, four doors, 4×2 R = R-1ZZ- FE (1.8 liters, 16 cl., Petrol, 129 hp) family EFI (DOHC, VVT-i) I JUST DID BY HAND 5 FIRST DIGITS FOR YOU THE SERVICE MANUAL SHOWS THIS DECODE FULLY. BIT BY BIT. OR HERE https://www.youcanic.com/toyota-vin-decoder/ position 12 " 17 identifies the serial number of the car.

wow no year car told. now that is a Hard row to hoe.. 2007 to NOW. no engine told and cats are designed for engine and smog ,in one countries laws. reset the all DTC errors via button on scan tool; then drive see if P0420 comes back, first not buy $400 cat on a whim./ I roll the dice, see 10, 2010 and answer. and LY7 engine V6 (there are others) DTC P0420: Catalyst System Low Efficiency Bank 1 DTC P0430: Catalyst System Low Efficiency Bank 2 bank 1 means , that bank that contains cylinder #1 where is cylinder #1 it on all V engines, that cylinder that is MOST forward. all cyl 1 are offset front never post about cars and no year or engine told or post #8th digit of VIN this is engine code, so answer and be correct. (USA answer me only)

If it has a distributor you will want to make sure that it is in time. If the ECU cant find the cam signal it doesn't know when to fire the coil. I have ran into this more tha once on that year truck.

no year car told, no engine told and is a pure engine/EFI question. a minute not 10second and dies, the dash IMMO lamp must not be unhappy or the engine is immoblizeds in 1 to 10 seconds. most cars or dead totally others. well , there are 50 causes or stalls on all engines we do up to 20 test using 10 or more tools to find real cause. guessing 50 times , no shop does that . can take the line and put in a can of gas it will run????????? HUH? this means test fuel works? sprayed into the intake and runs means it runs for 3seconds on test fueL and stalls/ we cant see your acts there, Impossible. too. here is the order (pure physics Otto cycle gas engine) ASE rules( books/training) engine must be good. (compressing tests pass and test fuel works.) spark must be good. if is test fuel works and and runs for 3 second is all a good sign then last is fuel all above ok testing fuel pressure must be at spec, no car told SO can not look that up. sierra what is it and year. Chevrolet C/K C1500 pickup or k = 4wd or ) what engine, lots of engine, Chevrolet Silverado Chevrolet Suburban top fix any car engine learn what is under hood first the RPO codes tell that. and VIN . by year

In the engine compartment fuse box, it's the one labeled LIGHTING

Is the check engine light on, or yellow wrench light symbol? Hook up a professional grade scan tool an check for DTC'S - diagnostic trouble codes . No throttle response , problem with electric throttle control . Two position sensors in gas pedal assembly - two position sensors in the electronic throttle body - plus a DC motor to control throttle plate position. Other poster has no clue. Dirty throttle body would not cause no throttle response, rough or unstable idle for sure. If this answer helps you, please donate whatever you can. Thank you! paypal.me/TesfayHaile rip-off

Q1: REVERSE IS DEAD TOO?> no VIN told or if transmission is automatic. or manual no engine told of 3 and tranny size matches engine power 4L60-e transmission is on 5.0L gm engine. I think most Envoy are A/T boxes. USA, shows this . PRNDL. Reverse. Drive and Low fail? say those words is east,. the transmission needs service, vast problems possible they are complex. causes, top:(SCAN THE PCM IS WISE SEE IF IT SEES A HUGE PROBLEM THERE.) BUT REVERSE DEAD IS A VERY BAD SIGN. SCAN THE PCM FOR SOLENOID ERRORS!

1. ATF oil leaked out of box and now dry, diP stick it? ATF smells burnt or looks like TAG is bad news. or metal flakes in the ATF DRIPPED TO A SHEET OF PAPER.
2. fuses blown but most time reverse still works.!!!
3. transmission shift linkage failed. (the service manual covers the steps to check that, Read the SM?)
4. transmission shift solenoids bad. (reverse? has none)
5. transmission is bad. (means removal time)

NOW IF REVERSE FAILS ALL THESE THINGS HAPPEN TO ATTAIN IT. you asked so here is a complex answer, (not all) AND LOTS MORE TO FAIL. http://67-72chevytrucks.com/vboard/showthread.php?t=447470

1st step torque 22ft lb, 2nd step tighten an additional 155 degrees per haynes manual sequence.

hot or cold engine High and how high is RPM not told. no it is not evap failing to cause RPM failures. 2 problems sure, but not THE problem well gas cap loose or bad is first. simple fix that is costs nothing, and cap good or cap bad $10 fix.but not RPM off. then purge solenoid. RPM high is the best clue here. for sure mine fails every 50k miles it seems and pull the valve and flex the valve inside while spraying silicon oil spray inside it and it goes 50k more miles costing me 50 cents lube. 497 Evaporative Emission (EVAP) System No Flow During Purge the test in the service manual are extensive example

• A loose, missing, or damaged fuel fill cap can cause this DTC to set.
• A stuck closed, blocked, or restricted EVAP canister purge solenoid valve, can cause this DTC to set.
• A blockage or restriction in the EVAP canister purge solenoid valve vacuum supply hose, EVAP canister purge solenoid valve purge pipe, EVAP canister, or vapor pipe, can cause this DTC to set.
• A temporary blockage in the EVAP canister purge solenoid valve, purge pipe or EVAP canister could cause an intermittent condition. Inspect and repair any restriction in the EVAP system.
• To help locate intermittent leaks, use the J 41413-200 Evaporative Emissions System Tester (EEST) to introduce smoke into the EVAP system. Move all EVAP components while observing smoke with the J 41413-SPT High Intensity White Light. Introducing smoke in 15 second intervals will allow less pressure into the EVAP system. When the system is less pressurized, the smoke will sometimes escape in a more condensed manner.
• To improve the visibility of the smoke exiting the EVAP system, observe the suspected leak area from different angles with the J 41413-SPT .
• Observe the Freeze Frame/Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition occurs that caused the DTC to set. This may assist in diagnosing the condition.

the valve is here "P" #10 if it leaks running, stuck open rpm can go wild or the hose to it is cracked

well the harness there in most cars/trucks are sold new with 5 to 10 radios. and are not the same harnesses. or read the service manual https://eautorepair.net/Marketing/Default.asp

check for jumped timing --

Sounds like you need to remove the motor mount bolts and jack the engine up a tad. Place a jack under the crank pulley

SO YOU DID NOT CHECK HOOD AND IP BOX FOR BLOWN FUSES OR MISSING,RELATED. 6.6L DIESEL?????????????????? car drives ok day night? heads work ,parks work ,brake lamps? DOMESTIC CAR USA NOT THE EXPORT RIGHT? TURNS SIGS ALL 6 LAMPS DEAD? OUTSIDE CAR FRONT /REAR AND DASH TURNS,(Indicated) all 6 dead and same question on hazards 6 flashing or what. sorry no BCM on turns PERIOD. same with hAz LT/TURN FUSE RUNS LEFT DOOR TOO!!!!!!!! IP FUSE BOX !!!!!!! LEFT FUSE ONLY GOES HOT WITH TURNS SWITCHED ON NOW WAY 3 GROUNDS FAILED, PERIOD NOW RIGHT TURNS. RT /TURN FUSE.,, NOW WAY BOTH SIDES ARE BAD, THEY ARE INDEPENDANT AT THE 2 FUSES BUT NOT BEFORE. IM READING THE SERVICE MANUAL TO YOU. IGN-E FUSE KILLS ALL TURNS DEAD(AND HAZ) UNDER HOOD . THE MULTI SWITCH CAN FAIL FOR BOTH HAS AND TURNS. SO THE TU\RN FLASHER IS BAD IN THE IP FUSE BOX. ITS BAD. THOSE FUSES YOU TOLD ARE ARE DEAD KEY OFF, YOU DO KNOW THAT RIGHT>? TCM FUSE? IS THIS A DIESEL NO ENGINE TOLD AT ALL AND WIRING IS NOT THE SAME ON, ALL , MOSTLY YOU MEANT PCM-B FUSE? PCM1 IS KEY ON ONLY , MAKKED GAS ONLY MUST WE BEG FOR ENGINES SO DONT NEED TO REAR ALL 5 ENGINE SCEMATICS? SOME CAB LAMPS ARE DEAD, IF BCM FAILS OR DDM DOOR BRAIN GOES DEAD. AND GOES BACK AGAIN TO LT/TURN FUSE RUNS LEFT DOOR TOO! DOME LAMP ASK BCM FOR LAMPS. TO GLOW SUPER SIMPLE SWITCH TO GROUND AGAIN THERE IS NO TCM ON A GAS ENGINE , TCM IS PART OF PCM THE PCM HAS 2 POWER FUSES, ONE IS HOT ALL THE TIME FOR MEMORY AND OTHER IS KEY ONLY POWER. THE TCM FUSE IS CALLED IGN0 AND IS RUN FUSE ONLY IM NOW CHASING SHADOWS. OF 6 ENGINES MIXED I GIVE UP' AGAIN THE BCM DOES NOT RUN THE TURNS OR THE HAZ THE BLINKER BOX HAS 2 INPUTS, HAS SIMPLE SPST PUSH BUTTON NOT PART OF TURNS, AND 2ND IS TURNS LEFT AND RIGHT SO USE BLOW OR MODEL BLINKS DEAD LOOK MA' NO BCM IF FUSE GOOD THE FLASHER IS BAD. FOR SURE HAZ BAD TOO. AND THE LT FUSE BLOWN KILLS DEAD DDM, DRIVER DOOR BRAIN

Sounds like a bad transmission. Once the oil in your transmission warms up it becomes a thinner viscosity allowing your clutch plates to slip

under seat will see lever latch pop it and seat will fold