Question about 2005 Hummer H2

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My tachometer revs really high when I'm driving at low speeds in the snow is this normal

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Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Silverado instrument cluster repair
Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for H2 instrument cluster repair

Posted on Oct 07, 2010

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Sounds like you are spinning your tires

Posted on Feb 03, 2010

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4 wheel drive won't engage


Which do you have ?
Transfer Case - NVG 236 (Two Speed Automatic)
Transfer Case - NVG 233-NP1 (Two Speed Selectable)
The NV236 transfer case is an automatic transfer case with three drive ranges. Shifting from rear wheel drive to four wheel drive is done automatically when the transfer case shift control module receives wheel rotating slip information from the speed sensors. The transfer case shift control module then engages the transfer case motor/encoder to position the transfer case from rear to four wheel drive. When the transfer case shift control module receives information that the wheel rotation is the same on both axles, the transfer case shift control module sends position information to the motor/encoder to put the transfer case back into rear wheel drive. The three drive ranges are 2HI, 4HI, and 4LO. The 2HI position is for normal driving with the rear wheels pushing the vehicle. The 4HI, position is for driving through sand, snow, mud, gravel, or heavy rain at normal or slightly below normal speeds. The 4HI engages the front axle to allow for four wheel drive. The front axle is pulling the vehicle, and the rear axle is pushing the vehicle. The 4LO range is used for off road driving, heavy snow, deep mud, or shallow fording. The 4LO is similar to the 4HI except that the gearing in the transfer case is set for low speed and high torque. The NV236 is manufactured at Syracuse New York by New Venture Gear a division of New Process Gear for General Motors.
Is the switch light on or flashing ? If you have automatic 4x4 there are several DTC'S that can set >
DTC B2725 ATC Mode Switch Circuit Malfunction DTC C0300 Rear Speed Sensor Malfunction DTC C0305 Front Speed Sensor Malfunction DTC C0308 Motor A/B Circuit Low DTC C0309 Motor A/B Circuit High DTC C0310 Motor A/B Circuit Open DTC C0315 Motor Ground Circuit Open DTC C0323 T-Case Lock Circuit Low DTC C0324 T-Case Lock Circuit High DTC C0327 Encoder Circuit Malfunction DTC C0362 4LO Discrete Output Circuit High DTC C0367 Front Axle Control Circuit High DTC C0374 General System Malfunction DTC C0376 Front/Rear Shaft Speed Mismatch DTC C0387 Unable to Perform Shift DTC C0550 ECU Malfunction DTC C0611 VIN Information Error

Dec 01, 2015 | 2000 Chevrolet S-10

1 Answer

Revs seem higher than normal in my 2005 Suzuki Swift Sport (3.3rpm in 5th @ 100km/hr) - is this normal? I also have a really high fuel consumption rate


2 issues,
1: MPG, you failed to say MPG, 15mpg? or 39? is 39 low?
what MPG? you never said it?

2: rpm cruise. (what drive line, A/T M/T ?) what tranny?
first google hit , is this it? this yours?
engine: 1.5-litre 4-cylinder petrol, 75 kW/133 Nm
Transmissions: 5-speed manual, 4-speed automatic, FWD

3300 RPM in 5th and 100km
if you wish to now what is normal, find the final drive ratio, listed in the FSM. Id say this is normal. typical of tiny engines, with low torque.at lower RPMs.

if you have the A/T and IF the trannywere to slip, the TCM will infact throw DTC codes, telling you it did.
IS IT? (scan tools show you this fact as might that glowing CEL lamp on the dash, on driving.

RPM
my 1.6L spins 3000 RPM , at below tranny options valve counts.
54/59mph (104km/hr = 59) 5sp MT.
64.6 4sp A/T (goes fastest due to more aggressive OD + axle ratio is lower.)
56/.53 2sp A/T
see how drive line effects RPM? so will your cars options.

Oct 17, 2013 | 2005 Suzuki Swift

2 Answers

What gear should i drive in snow and ice


Depends, do you have 4 wheel drive? If so you can just use 4 wheel high, or if things get really slippery, use 4 wheel low and go slow, both in the drive position on the transmission shifter.

If 2wd, just use drive and go slow, again, if it gets slippery out, you can shift down in gears to go slower and to keep your speed slow.

If you're talking about snow and ice on just streets, then stick with 4 wheel high with 4x4, or "drive" in 2wd. You typically don't want to switch to 3,2, or 1st gear at highway speeds.

If you're playing in the snow, just use 4x4 high until you get stuck, then switch to 4 low to get out.

The only time I switch gears with the transmission (from drive to 3,2, or 1) is when I want to go really slow and keep it there. However, when I "play" in the snow, it's Drive only.

Does this answer your question? If not, let me know! Thanks

Jan 11, 2011 | 2003 Chevrolet TrailBlazer

2 Answers

In deep snow what mode do u drive in


under 35mph its normally recommended that you utilize 4 wheel low it is good for maximizing the torque needed to pull out of deep snow. Moderate-Aggresive Mud and Snow tires also work hand in hand. ~Daniel.

Dec 28, 2010 | 1998 Jeep Grand Cherokee

1 Answer

I want to know about the power and the winter buttons. I want to know in the snow if I need to use the four wheel drive high or the four wheel drive low. I have a 1998 Honda Passport 4x4 automatic...


Four wheel High is what you need to use in snow. It is similar to your regular driving experience but your speeds should not exceed 45-50 mph. Shift through your normal gears as necessary and drive with appropriate caution. Four wheel High should be used only as long as driving conditions warrant, using it otherwise can cause unnecessary wear on your transmission and drive-train as well as lower fuel economy.

Four wheel low is used for pulling out of a ditch if you are stuck, going through deep mud or rock crawling. Four wheel low will also cause your vehicle to lurch every time you press the gas pedal.

Nov 15, 2010 | 1998 Honda Passport

1 Answer

Hello My 18 year old neighbour bought his first car last week, a '95 Chrysler Stratus 2.0 with manual gear box. Now the tachometer is broken, I was told that there were some plastic parts inside it...


the engine has a rev limiter inbuilt,so after 6250 revs it will cough and sputter.the rev counter is for people who drive to strict rev limits to conserve fuel,and the obvious drivers who drive to the max power/engine revs for "fun"most men drive to the "sound" of the engine,so a rev counter is excess to requirements....save your money.(once he gets his "no claims discount" down he will buy a bmw anyway.........)
regards
geoff
England

Sep 10, 2010 | 1995 Chrysler Cirrus

1 Answer

Oil pressure guage drops low when at idle but when excelerating reads normal kmello@sousademayo.com


Mine does the same thing, the gauge is like a tachometer, it revs like crazy, but holds steady at high speed, it goes down to about 10 at idle, 35 at cruise speed and it will go up to 55 if I step on it. But remember it is just a pressure gauge, it will read this pressure with 1 qt of oil in there, so don't use it for a level indicator. Check the oil, and you know if it has oil in it. Hope this helps.

Aug 05, 2010 | 1998 Dodge Avenger

1 Answer

Car revs higher than normal at about 30mph even though in top gear and tachometer doesn't show abnormally high reading.


You may have a defective tachometer gauge stepper motor, making the tachometer show incorrect RPMs.

Jun 25, 2010 | 2002 Chevrolet TrailBlazer

2 Answers

Just got H 2 2005 4 buttons 4 the 4 wheel drive


Use 2 wheels, the other 4wd low ,for climbing at slow speeds: 4wd high, for driving on low traction roads,like mud or snow,at medium speeds: 4wd auto full time all wheel drive, for highway speeds on slippery surfaces, like rain or light snow.

Jan 12, 2010 | 2005 Hummer H2

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