2008 Chevrolet Silverado 3500 Pickup Support Question
2008 Chevrolet Silverado 3500 Pickup Support Question
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Question posted by kkrame01 on March 29th, 2014
2008 Hd3500 Chevy 4x4 Duramax 'limp' (low Power) Mode (towing Heavy Load).
Vehicle was 2-yrs old and approx 20,000-miles, and would go into the "LIMP" mode (less than 35mph max) when towing more than 15,000-lbs (w/ less than 20,000-miles) like it was starving for fuel. I filed a complaint w/ the NTSB but no reply. Dealer checked the fuel pressure then stated they thought it was a collapsed fuel line or dirt in the fuel tank. I pulled the fuel tank (it was clean) and replaced all the fuel lines (but none were collapsed). Since no problems were found and the fuel system does NOT have a fuel pump to push the fuel to the injection pump, I installed a $700 + "Air-Dog" system w/ a 165-gal per hour electric pump (at my personal expense). Since that "Air-Dog" system installation, there have been "0" issues towing a heavy loads w/ my HD3500 Duramax. Is there any other repair that should have been performed? With all the recent GM recalls, this issue should be included.
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Related Manual Pages
Owner's Manual - Page 7
...operate them are located on the outboard side of the seats. A vehicle with power reclining seatbacks, the control is located behind the power seat control on the outboard side of the control up or down.... the entire seat by moving the entire
control up or down. Your vehicle may have additional features to adjust your vehicle's power seat:
• Raise or lower the front part of the seat ...
Owner's Manual - Page 9
... on to indicate that the feature is turned off . The vehicle may have additional features to adjust the power lumbar:
Heated Seats
On vehicles with a memory function allow seat settings to be canceled ten seconds...of the lumbar support, press
and hold the bottom of high, medium, and low and to turn on page 1-6 for low. The light on the button will come on the heated seat and seatback....
Owner's Manual - Page 18
... he or she cannot wear a safety belt properly. You can hit things inside or outside of a vehicle. Do not allow people to ride in any area of your vehicle that your vehicle is operated at low speeds. Your vehicle has indicators as a reminder to use safety belts properly. People riding on page 3-39.
1-14 In...
Owner's Manual - Page 111
... the express down feature allow the driver and front passenger windows to close the window.
2-17
The express down mode can be operated manually. Power Sliding Rear Window
On vehicles with the express down mode. The lockout switch is located in the overhead console. An indicator light on the switch will come on page...
Owner's Manual - Page 121
...vehicle may exist which lets pedal settings be seriously injured.
An internal thermostat in the plug-end of the cord may have a memory function which will not reach, use a heavy...15 amps. 4. Before you start driving, fully press the brake pedal to unplug and store the cord as it was before starting your vehicle has the DURAMAX® Diesel engine, see the DURAMAX... power ...better fuel ...
Owner's Manual - Page 123
...gear, Two-Wheel Drive High or Four-Wheel Drive High or Four-Wheel Drive Low - not in NEUTRAL. See Shifting Into Park on fairly level ground, always...vehicle can roll. CAUTION: (Continued)
2-29 To be sure your vehicle will not move, even when you are pulling a trailer, see Towing a Trailer on a hill, especially when the vehicle has a heavy load, you start the engine because your vehicle...
Owner's Manual - Page 124
... the next gear and has more power. NEUTRAL (N): In this , the vehicle shifts down to REVERSE (R) while your vehicle is Stuck in skidding. To restart when you are already moving, use NEUTRAL (N) when your vehicle is moving forward could move very rapidly. DRIVE (D) can be used when towing a trailer, carrying a heavy load, driving on steep hills, or...
Owner's Manual - Page 127
... Transmission®, or the Hydra-Matic® 6-Speed Automatic Transmission, it detects wheel slip, preventing the tires from spinning.
2-33 Low Traction Mode
If your vehicle can be used until the plus /minus buttons, located on a hill using the Range Selection mode feature, cruise control and the Tow/Haul mode can automatically shift to the MANUAL...
Owner's Manual - Page 132
... be towed. Be sure to use when plowing snow.
2-38 This setting also provides the best fuel economy. 4 m(Four-Wheel-Drive High): Use this setting only when your vehicle. 4 n(Four-Wheel-Drive Low): This... drive your vehicle needs to the N (NEUTRAL) symbol as on page 2-50. See Parking Brake on snowy or icy roads or in most street and highway situations. It sends maximum power to this ...
Owner's Manual - Page 140
... in most street and highway situations. When driving your vehicle in Two-Wheel Drive. You may never need this mode. See Parking Brake on page 3-66.
2-46 It sends maximum power to NEUTRAL only when towing your dealer for use when plowing snow. 4 n(Four-Wheel-Drive Low): This setting also engages the front axle and delivers...
Owner's Manual - Page 156
A convex mirror's surface is equipped with outside power foldaway mirrors, the controls are located on the four-way control pad to adjust the...'s side mirror. If you cut too sharply into the right lane, you could hit a vehicle on your vehicle is curved so more can make things (like other vehicles) look farther away than they really are.
Convex Mirror
The passenger's side mirror may have ...
Owner's Manual - Page 247
...vehicle's engine power is low. Stop and turn off the vehicle, check the hood for obstructions, and close the hood again. Stop and turn off the vehicle, check the door for obstructions, and close the door again.
See Fuel Gage on page 3-55 and Fuel...power can affect the vehicle's ability to a safe operating temperature. Check to your dealer...is on. ENGINE POWER IS REDUCED
This ...
Owner's Manual - Page 258
...the set /reset button once to access the settings for 20 seconds or until the lock button on the RKE transmitter is pressed, or the vehicle is no longer off. EXIT LIGHTING
This feature allows ...to scroll through the following settings: OFF: The exterior lamps will not turn on briefly during low light periods after the key is displayed on the DIC display. To select a setting, press the...
Owner's Manual - Page 263
... or two-way radio, make sure that has been added. Your vehicle has a feature called Retained Accessory Power (RAP). Added sound equipment may interfere with the operation of sound ...all of your vehicle's engine, radio, or other systems, and even damage them . While your vehicle is parked:
• Familiarize yourself with your dealer/retailer. See Retained Accessory Power (RAP) on ...
Owner's Manual - Page 326
... other important information in the cargo area as far forward and low as you can.
{CAUTION:
• Cargo on the load floor and
forward of the seatbacks. Put heavy loads inside the cargo area, not on page 5-68.
•
•
4-14 Loading Your Vehicle for Off-Road Driving
There are some important things to remember...
Owner's Manual - Page 367
... itself. Many of your passengers. Ask your dealer for important information about towing a trailer with your passengers could be used properly. Trailering is too heavy, the brakes may not work well - For example, if the trailer is different than just driving your vehicle.
4-55 5. You and your vehicle. Turn the ignition to be seriously injured...
Owner's Manual - Page 369
... in the tow vehicle must be subtracted from the maximum trailer weight.
• When pulling a heavy trailer or a large or heavy load
through rolling terrain.
• When pulling a heavy trailer or a large or heavy load
in stop and go traffic.
• When pulling a heavy trailer or a large or heavy load
in unpleasant engine and transmission driving characteristics and reduced fuel economy...
Owner's Manual - Page 384
... or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,500 lbs (1 587 kg) maximum. *Trailer rating limited to 13,000 lbs (5 897 kg) with weight distributing hitch. **The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo...
Owner's Manual - Page 413
... and ethanol, and reformulated gasolines might turn on and your vehicle will operate satisfactorily on fuels that will help keep fuel injectors and intake valves clean, or if your vehicle experiences problems due to work properly. If this occurs, return to your dealer/retailer for low emissions can corrode metal parts in your warranty. The malfunction...
Owner's Manual - Page 435
...protection down to 265°F (129°C). Protect against rust and corrosion. This coolant is low. If you add only DEX-COOL® extended life coolant. Help keep the proper engine ...it is designed to remain in your vehicle is filled with engine overheating, see the DURAMAX® Diesel manual for five years or 150,000 miles (240 000 km), whichever occurs first, if...
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