1990 GMC Sierra "power" Questions

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jost power steering and power brakes at same time. any ideas 1 ton /350 The engine provides power steering through the power steering pump that is runnung when the engine is going and the power brakes

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"Accesory Power" outlet not working. Can't find fuse. All of the fuses labelled "aux power" are fine yet the "accesory power" outlet and the cig lighter outlet (located on either side of the ashtray) ...

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Question about GMC Sierra

3 Answers

...pump was replaced about 2 years ago.. check fuel pump relay on firewall passenger side if it has power and power when the key is turned on will click test power through relay to fuel pump ...

power seats and seat heaters right windows not working 2006 gmc after trying to open right power wind which was frozen shut power seats aswell as seat heaters and right side power window stopped ...

Question about GMC Sierra

2 Answers

no power to fuel pump changed relay and pump why would you change a pump that had no power - cetainly you would figure out the reason for there being no power... My fuel pump had no power, so I ...

Question about GMC Sierra

3 Answers

NO POWER STEERING AND NO BRAKES WE CHANGED P/S PUMP AND THE HYDRO BOOST NOW WHAT The brakes and the Power Steering are two different systems and two different problems. The brake problem is going to ...

Power window control,power door lock,door running light,all not working on 2004 GMC Sierra passenger front door.I have not pulled the door panel off yet.Lights and locks work on other doors.Is this a ...

Question about GMC Sierra

1 Answer

...window switch with out to much trouble . test the circuits with a test light and make sure there is power and ground to them . If there is no power and ground check your fuses if they are all good ...

Question about GMC Sierra

1 Answer

No power to trailer hookup All of the fuses are good but I'm not getting any power to the trailer Check your ground wire. If it's ok, take a test lead and check for power in the plug on your truck. If

Question about GMC Sierra

1 Answer

no power to accessories turns over fine on key but no lights, horn, radio no power anywhere but starter. i did engine swap from 4.3 setup to 350 turbo 350 trans Check for power at the fuses, dont just

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