Hummer engine repair questions and answers
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48 Questions
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Cranks but doesn't turn over!sergioa57 - 2004 Hummer H2 - Engine - 4/30/2013Same problem once before, problem was ignition coil. Replaced one fixed problem. but now same symptoms, so checked all coils and couldn't find bad one. -
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3/23/2013 JimmThe PCV (positive crankcase ventilation) system consists of; the PCV valve, the valve seal, the valve connect hose and tubing, the PCV filter. You can simply replace each or all these items, depending on the condition.
Here are several possible on-line auto parts sources; www.autopartswarehouse.com, www.1aauto.com, www.rockauto.com.
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Have a Honda civic ex 04 not getting any heat blowing cold air what can I check forclaudio - 2006 Hummer H3 - Engine - 1/22/2013no heat just cold air -
I turn on my car and the engine won't start. The lights and radio turns on and the whine light is on, what's the issue?taylor - 2006 Hummer H2 - Engine - 12/23/2012I just put in a subwoofer and the guys at the shop had to jump the car, before that, the car has never needed to be jumped. That was just 6 days ago.-
12/23/2012 ENGINEBUILDERPossable constant power draw from new sub wolfer system, Have load check done on battery. Some of these systems draw alot of power and this could be draining battery. I have seen people install a redundant battery to boost avalable CCA .(cold cranking amps). Disconecect fuses from sub system to verifiy after jump starting.
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RPM falls to 3-4 hundreds when braking.1detroit1 - 2007 Hummer H3 - Engine - 11/20/2012When I apply the brakes to slow down or stop my Tach shows the RPM's go down to below 500 and it feels like it wants to stall. The other day it did stall out while braking to enter a parking lot. Anyone have any idea's what the problem could be? I've had a BG fuel ...
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Engine periodically cranks but won't start. Maybe 15 minutes later stats fine. Happens once or twice a week.weco100 - 2007 Hummer H3 - Engine - 10/12/2012Seems to be worse when it sits overnight.
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The car will shut off while driving starts no problem . And restarts no problemscorey adams - 2007 Hummer H3 - Engine - 9/16/2012What could be going on-
9/16/2012 HouseCallAutoPlug in a code reader and see if any fault codes are stored. if no codes are there, tell us that. The check engine light does not have to ne illuminated to have stored codes.
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Does start right awayzephyrzoeeric - 2006 Hummer H3 - Engine - 9/12/2012I turn on the key and the delays before running -
My h2 wouldn't start when driven for 2 hours,wait for 30 to 45 minutes before it can start up,replace starter & relayrossway - 2004 Hummer H2 - Engine - 7/17/2012
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How do I change oil pressure sensor on a h2? And how much are they ?machine328 - 2006 Hummer H2 - Engine - 6/21/2012On the dash display the gauge is jumping from 0 to full when I hit a bump on the road and it also beeps constantly when it hits 0 -
The battery on my H3 is draining even though everything is shut offStan - 2007 Hummer H3 - Engine - 6/16/2012I've had to jump start it for the last two days. It charges weak when I do run it so I'm thinking I may have an alternator problem or something is being left on that drains the battery
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Driver seat will not move anyway or any motion? check fuse, it is good.what is it??????james williams - 2006 Hummer H2 - Engine - 6/8/2012
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6/8/2012 JimmSeveral possibilities; faulty motor relay, faulty seat motor wiring, faulty seat motor.
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Car stops wean I'm driving and didn't want. To start for hoursalex - 2003 Hummer H2 - Engine - 5/28/2012I'm driving like 10/15 mils hummer loss bower and at cranks bot not start for one one to tow hours I take to dealer thay did oil flush bot new oil didn't work now thay say maybe is elctrec broplems code po336 com on the scaner I'm in Yemen in at seems like that can ... -
I purchased a Toronado gas saver from JC Whitney unit does not secure into air ductgorilla - 2005 Hummer H2 - Engine - 5/24/2012part# KI90...the bldes bottom out on cross plate at sensor duct...even after modifying plate , no way to keep toronado stationary in duct.
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5/24/2012 raoul_tiestoIts not gonna work,u wont save any gas its a lie.Think about it. The automotive companies spend hundreds of millions of dollars designing fuel-air systems, and a cheap piece of bent aliminum stuck in the intake is going to improve it?
Besides....Hummer does not have noting in common with fuel economy.
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