Question about 2004 Chevrolet Silverado 1500 Crew Cab

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While driving, total electrical failure and dead engine. 10 seconds later all was again working. Computer retains no record of any problems. Previous to this, the instrument went dead on three different occasions.

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Sounds like a bad pcm ground there are 2 on both sides of back of engine

Posted on Sep 30, 2009

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Check your battery connections; both ends of them. Modern vehicles can't run without a constant supply of power, and a battery connection is the most likely to come loose.

Posted on Oct 03, 2009


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Charging system failure

Most probably the alternator brushes are worn.
My second guess would be either the alternator's voltage regulator or bridge.

Although the computer said "charging system failure", you were able to drive the car, but all the electrical systems (headlights/taillights, power control unit, injectors, ignition etc) were powered by the battery current instead of the alternator current. The alternator wasn't able to recharge the battery and power the devices due to its failure.

After a couple miles you've discharged the battery to a point where its voltage was insufficient to power the instrument cluster (thus the speedo and fuel meter went down to zero). The engine's computer, injection, ignition and, let's call it "airbag controller", are far more critical for the passengers' and vehicle's safety and therefore were still able to work despite the battery voltage being so low. But some time later the battery was discharged to the point it was unable to power these most critical devices and the engine stopped.

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99 Ford Explorer 5.0L Eddie Bauer, 150k miles, California Emissions Current Problem: Surges/stalls after driven 10-15 miles, dies on grades. Sometimes stall can be controlled by feathering gas pedal. ...

Several ideas. Crankshaft sensor can under-record RPM and keep fuel pressure artificially low. Would not show on Tach as it reports to PCM, not dash gauge.

Not being able to clear computer is sign something is wrong. If you look at how diagnostics show each device, they share the ground wire and test continuity through hot side of each appliance for continuity loop.

I do not have wiring diagram, but suggest you look at one to find out what causes trouble code light to activate. Could be bad wire loom or bent pin connector. Check site for TSB's on your model.

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Get a different shop to check all of the suspension components - if the struts both snapped, something is going on that's a much bigger concern than the wheel bearings. Look for bent control arms and other suspension components - check clearances and bushings everywhere in the rear, make sure nothing was installed backwards or forgotten. Struts don't just snap, and bearings should definitely not die every couple thousand miles. Also, have a dealer look at it, to make sure that things are installed properly. It won't be cheap there, but they might notice something that other shops routinely miss. I hate suggesting that ANYONE go to a dealership for service, but in this case, they're the most likely to notice something out of spec...

Oct 18, 2012 | 1995 Volkswagen Jetta

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The Forte 2010 have an electric problem?

Check alternator at autoparts store.

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Message center and transmission gear shift display, totally disappear and go black shortly after start up or will not illuminate at all.

{: ) You may wish to record the latest odometer and engine hours reading while still visible, just for future purposes. The problem is an internal circuit failure on the Instrument Panel Cluster (IPC). Sooner or later the two message screens on your IPC will totally go blank and goodbye, so be prepared.
A replacement IPC will be that of later models, it will be programmed to your vehicle, and the trip odometer (total mileage) will be reset to zero.

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Put in a new battery, 3 days later it was dead again. alternator check out ok

Hi there. why did you replace the previous battery ? did you have the same problem. if so your car have develop a electrical problem and need it diagnosed at your local auto electrical workshop or have the alarm system checked.

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Have a 2002 ion that sometimes wont start but if left for 10 mins will start up.

I have 2003 Saturn Ion. I had this problem over and over 2006 - 2008. IT IS THE IGNITION SWITCH. IT IS DEFECTIVE IN ALL ION'S.The replacement may be defective also, not sure. Mine was driving fine, went ino store for 1 hr came out stone cold dead, would not start and key **** in. Had to have towed to Saturn. They said it was battery and replaced battery.I said this did not make sense. 6 yr battery only 3 yr old , never weak start, never run down, in summer? It happened again 2 mo later. They tried to say battery , I said no. They checked battery. It was fine. Could not find problem. They did total electrical check. It happened again 1 mo later. drove into feed store. Went in came out it happened again. I got jump from someone 30 min later and started right up. 2 wks later same, I got jump 20 min later started. 1 mo late same. Sometimes it would just start up. Took to another Saturn place. They said Ignition switch, saturn was having big problem with this on Ions. Got changed and no problems for 1 yr. I was talking to repesentative at Saturn Headquarters. I told the problem. They said the ignition switch has an electrical component, or it is hooked to electrical component. THEY SAID IF I HAD JUST SAT THERE 20 MIN WITH KEY OFF, THE COMPUTER CHIP FOR IT WOULD HAVE RESET ITSELF WHEN IT COOLED DOWN AND I COULD HAVE STARTED IT EACH TIME. IT WAS BEST TO GET REPLACED AND NOT WORRY, BUT THIS WILL HELP YOU IN A STRESSFUL PINCH, UNTIL YOU CAN GET THE IGNITION SWITCH REPLACED. NOTE: Go to Auto Zone , O 'Reilleys, Pep Boys etc, get a repair manuel , CHILTON $ 23- $ 25 , for your year , make, model car. CHILTON IS MUCH BETTER THAN HAYES MANUEL. It is wonderful and many things you can do yourself.

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Service engine check yellow light in Dash lit

You car has a trouble code stored because the computer has detected an emissions or electrical control problem during self testing. DO NOT listen to anyone who says to disconnect the battery!!! Leave the light on and take it to a professional who owns a scantool and can read the code and freeze frame recording data and determine the exact cause. CLEARING THE LIGHT wont fix the problem, and in the case of an intermittant problem like a crankshaft sensor...the early trouble code may indicate an impending failure that can be diagnosed and repaired before total failure. If you clear the code and nobody knows what the code was till it happens again, you can become stranded and require a tow. Codes are not dangerous, they are information for expediting repairs.

Sep 12, 2009 | 2004 Jeep Grand Cherokee

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My 2005 Jeep Grand Cherokee with 50k miles has total electrical failure. Drove to lunch, tried to start 20min later, remote entry worked, turned over for split second then... total electrical failure. I...

your vat sensor sounds bad.(this is where the chip in the key is not recognized by the vat sensor, and will(in some cases) cause this problemVAT(vehicle anti-theft) module can be replace or it could be your ecm(computer); butit sounds like the VAT sensor problem. The good old days and these sensors wouldn't exist. insert key;start car. Good Luck.

Aug 29, 2009 | 2005 Jeep Grand Cherokee

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