Question about 2008 GMC Sierra 2500HD 2WD

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Truck will not start

08 pickup will not start after new battery and alt. replaced, not sure if it has anything to do with alarm system new vehicles.

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Yes it does,new vehicles have in bord self power cuter for security .but please chek for 100 to 80 amp fuses and battery attachement connections ,starter connections and all the wires from batterie to soleinod and from solenoid to batterie if not , then take you vehicle to the close dealer for recalibratoin (flasch) of you security system .....nicolas

Posted on Dec 20, 2008

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Posted on Jan 02, 2017

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1 Answer

If I leave pickup 8 hours, why is it dead and has to be jump started?


Sounds as if there is a parasitic draw on the battery. You need to perform a draw test to see what amperage is being drawn from the battery while the vehicle sits. Anything more than !/4 amp will kill the battery overnight. Check for any lights that may be staying on inside the vehicle as well as outside the vehicle while it is shut off before getting involved in a draw test

Feb 20, 2016 | 2005 Ford F-150

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Trouble with the alarm system. Had to unlock the passenger door,if not the alarm would activate and run the battery down. Now when the care is started the alarm system was activated, causing the battery to...


The weak battery can cause this. Remove battery, trickle charge overnight, and have tested by a reputable garage, out of vehicle. My bet is that you have a very weak battery, and Chrysler products will have all sorts of alarm problems if the battery can't hold 12 volts overnight.

Oct 21, 2011 | 1995 Jeep Grand Cherokee

1 Answer

Battery went dead on car, car security system is in safe mode and want let car start, when you unlock the car alarm sounds and want do anything else, Battery has been replaced, can i reset the alarm if so...


Hello,

The new battery should have reactivated the alarm? If this is a keyless entry, than your original code should work?

If it doesn't than you need to call the dealer, or seervice provider for your alarm system there has to be a reset code, or a new one has to be provided?

I would try your normal code first! If it works, your good, if not, your going to be on the phone! No body but the place you purchased your vehicle from or the Alarm system provider can give you that answer!

Kind Regards!

Sep 15, 2011 | 1996 Honda Accord

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I just replaced a battery in my 95 toyota pickup truck and still no start nothing is working and i have tryed to jump start it as well. i check a fuse box under the hood behind the battery and noticed a...


This means you most probably got your vehicle boosted backwards! Replace fuse and try to restart vehicle. Shouldn't have a problem! Seen this many times!

Nov 30, 2010 | 1995 Toyota Pickup

1 Answer

The alarm System is killing the battery and when new battery is put in the truck wont start, How do disengage the alarm system


Use you key to lock and unlock the tailgate as the alarm is sounding. The alarm will shut off and vehicle should start.

Oct 01, 2010 | 1994 Jeep Grand Cherokee

1 Answer

1994 NISSAN PATHFINDER WONT START I LIKE TO FIND OUT HOW CANT I BY PASS THE MANUFACTURE SECURIETY SYSTEM . BUT I HAVE INSTALLED A AFTER MARKET ALARM AND I HAVE A BRAND NEW STARTER, ALTERNATOR , BATTERY...


First thing you should have done was check and test.NOT REPLACE PARTS.Did you test the battery to determine it needed to go? Had the starter failed to turn the engine over? The Alt supplies current to run the vehicle ,and keep the battery at the proper state of charge. How did you decide on ign wires verus the other ign components? Did it start and run okey ,before you added the after market alarm? If yes, I guess you know where some of the issues are!

Feb 18, 2010 | 1994 Nissan Pathfinder

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1985 dodge powerwagon, lights went dim driving home now wont start, just replaced battery 6 months ago. starter clicked at first then nothing.


The alternator may not be charging the battery. Jump start it, and use a volt meter at the battery, red lead to positive and black to neg. The meter should read between 13 and almost 15 volts, any lower than 13 volts, the alternator is no good. (this is done with vehicle running).

Feb 02, 2010 | 1985 Dodge Pickup 4WD

2 Answers

After market auto alarm will not reset


Hi..
Is there 2 options to replace the Battery in your vehicle.
If you Don't have the REMOTE CONTROL.

1-- try to locate the VALET Switch. is used to activate and deactivate the Alarm.
Normally is located Near the Fuse box panel Inside of the car.
and some times on Left kick panel.
If you found the switch. Connect the new Battery and go inside of the car Turn the Key to ON position and Push ( Move the lever up or down) of the VALET switch.
Them try to start.

2-- Just With the BATTERY disconnected .
Go inside of the car And turn the Ignition Key to ON position leave it.
Now connect the Battery and the Alrm will NOT activate.
Go inside and try to start.
And Letme know.

I hope this help on your problem.
Thank you for use fixya...

Sep 15, 2008 | 1997 Chevrolet K1500

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