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GM 6.6 Duramax diesel tips for fuel system diagnosis

The mechanical h.p. pump located in the engine valley is the only pump, it has the duel function of pulling fuel from all the way from the tank and thru the filter and cooling the ficm to the h.p. section of the pump. This means the entire fuel line, tank to engine, is under suction YOU WONT SEE A LEAK, you might see a wet stain.

2015 Silverado - Brake failure at low speed | GM Truck .

May 05, 2018 · GM did put out a service bulletin (PIT5361B) stating a possible cause is motor oil getting into the brake booster and/or the booster vacuum line coming from the vacuum pump. Unlike older trucks, the newer ones have a belt driven vacuum pump mounted to the side of the engine block which is lubricated by pressurized engine oil.

Chevy 6.0 Engine Problems and Solutions | SBW

3.2 Other Chevy 6.0 Oil Pressure Problems and Solutions Low oil pressure. A check engine light due to low oil pressure is a common complaint in GM (General Motors) vehicles years 2007-2016 that have V8 engines.It is also known as DOD (displacement on demand).

SilveradoSierra.com • Brake booster vacuum pump failure .

Mar 22, 2018 · Vacuum Pump Vacuum Line between the booster and the pump Brake Booster Master Cylinder Vacuum Pump Belt GM has updated to a new p/n "12669488" Pumps are made in china, says it right on the back of the pump, but you can get an AC delco one on amazon for 120. The corvettes and camaros actually use an electric vacuum pump p/n 20981800. There is .

Symptoms of a Bad or Failing Vacuum Pump | YourMechanic Advice

Jan 12, 2016 · Since the vacuum pump is always in use, the likelihood of experiencing some sort of mechanical failure or entire breakage is more likely on diesel engines that utilize this component. The most common cause of vacuum pump failure occurs due to broken belts, electrical problems inside the unit, or vacuum hoses that fail.

Symptoms of Vacuum Advance Problems in Classic Cars

A few pumps of a manually operated vacuum tester should provide a full advance, and the sliding plate should stay in place until you remove the vacuum from the port. Additional Advanced Testing Even if your car's vacuum advance is working properly and holding negative pressure, there could still be a problem with the vacuum signal itself.

Possible GM Brake Vacuum Pump Lawsuit? | The BRAKE Report

Oct 11, 2018 · A GM brake vacuum pump lawsuit alleges Cadillac, Chevrolet and GMC vehicles have problems with the brake boosters and hard brake pedals as part of defective braking systems. Included in the proposed class-action lawsuit are all consumers who purchased or leased in California one of the following General Motors vehicles:

Fixing a Power Brake Problem Using An Electric Vacuum Pump

Master Power's electric vacuum pump is a small, efficient pump that creates the vacuum needed to add that boost to a power brake system, leaving the camshaft to pull all the air it needs. Master Power's vacuum pump kit includes everything needed to complete the .

Fixing a Power Brake Problem Using An Electric Vacuum Pump

Master Power's electric vacuum pump is a small, efficient pump that creates the vacuum needed to add that boost to a power brake system, leaving the camshaft to pull all the air it needs. Master Power's vacuum pump kit includes everything needed to complete the .

Correction: General Motors-Brake Recall story | WTOP

GM isn't replacing the pumps because pump failures are rare and already are covered by an extended warranty, Flores said. "This remedy will improve brake performance in any situation where .

Lawsuit Says GM Owners Should be Worried About Vacuum Pump .

Oct 10, 2018 · Lawsuit Says GM Owners Should be Worried About Vacuum Pump Problems Creating Stiff Break Pedals October 10, 2018. A lawsuit says a failed vacuum pump in GM's brake boosters can make the brake pedal extremely hard to push, leading to longer stopping distances and accidents.. While investigating a rear-end collision involving the lead plaintiff "GM told her she should read the manual to .

Big Investigation Launched into GM Brake Vacuum Issues .

Nov 23, 2018 · The U.S. government is investigating more than 100 complaints of poor brake performance on 2.7 million General Motors big pickups and SUVs. The National Highway Traffic Safety Administration says a brake vacuum pump can deteriorate, causing increased braking effort and longer stopping distances.

GM recalls 3.8 million vehicles in North America due to .

Sep 11, 2019 · General Motors Co said Wednesday it was recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more .

GM recalls over 3.4 million pickups and SUVs to fix brake .

Sep 11, 2019 · GM says that as it ages, the pump in the power-assist brakes can put out less vacuum power than needed, increasing stopping distance and the risk of a crash.

New GM Recall: 3.5 Million Trucks Affected By Brake Vacuum .

Sep 11, 2019 · General Motors announced Wednesday it would recall nearly 3.5 million trucks in the U.S. to address a serious vacuum pump issue. GM says the amount of vacuum may decrease over time, requiring more .

2015 Chevrolet Suburban Service Brakes Problems .

Vacuum booster failure due to problematic vacuum pump. Stiff brake pedal and unable to stop vehicle. This is a safety problem that needs to be recalled by General Motors - New Richmond, OH, USA. Add Complaint. problem # 104. Aug 23 2019. Suburban. 79,020 miles; The contact owns a 2015 Chevrolet Suburban. While driving approximately 25 mph, the .

Vacuum Pumps: Why use them & what do they do?

Vacuum pumps vary in the amount of air volume (CFM) they can suck so the potential VACUUM a pump can create is LIMITED by the amount of air it can flow (CFM). The exhaust from the vacuum pump is sent to a BREATHER tank with a filter on the top, which is intended to retain any fluids (moisture, unspent fuel, air born oil) sucked from the engine.

Vacuum Pumps: Why use them & what do they do?

Vacuum pumps vary in the amount of air volume (CFM) they can suck so the potential VACUUM a pump can create is LIMITED by the amount of air it can flow (CFM). The exhaust from the vacuum pump is sent to a BREATHER tank with a filter on the top, which is intended to retain any fluids (moisture, unspent fuel, air born oil) sucked from the engine.

2016 Chevrolet Silverado Vacuum pump fail - YouTube

Dec 02, 2018 · Properly Diagnose Vacuum Pump Failure - Duration: 2:10. Cardone Industries 120,741 views. . Gm Silverado Sierra Vacuum Pump Replacement 5.3 & 6.2 (2014-2018) - Duration: 12:11.

2015 Chevrolet Suburban Service Brakes Problems .

Vacuum booster failure due to problematic vacuum pump. Stiff brake pedal and unable to stop vehicle. This is a safety problem that needs to be recalled by General Motors - New Richmond, OH, USA. Add Complaint. problem # 104. Aug 23 2019. Suburban. 79,020 miles; The contact owns a 2015 Chevrolet Suburban. While driving approximately 25 mph, the .

GM recalls 3.8 million vehicles in North America due to .

Sep 11, 2019 · General Motors Co said Wednesday it was recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more .

GM recalls nearly 3.8M pickups, SUVs to fix brake issues .

GM isn't replacing the pumps because pump failures are rare and already are covered by an extended warranty, Flores said. "This remedy will improve brake performance in any situation where brake .

Troubleshooting Part 1: GMC/Chevrolet | Diesel Tech Magazine

Lind and the team at Left Coast Diesel have also seen consistent problems with trucks equipped with EGR systems. "All of these smog trucks that have EGR systems are prone to failures in the vacuum pumps," says Lind. "The pressure drops lower than specifications and shows up as a P0404 code.

PIT5361D Diagnostic Tip - Additional Brake Pedal Eort

4023850 Vacuum Pump Assembly Replacement Use Published Time 2480118 * Replace vacuum pump, vacuum pump to booster hose, vacuum brake booster, and brake master cylinder 2.8 hr * This is a unique labor operation for bulletin use only. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is

Correction: General Motors-Brake Recall story | WTOP

GM isn't replacing the pumps because pump failures are rare and already are covered by an extended warranty, Flores said. "This remedy will improve brake performance in any situation where .

Properly Diagnose Vacuum Pump Failure - YouTube

Oct 28, 2011 · This CARDONE ProTech video discusses what a Vacuum Pump does and how to properly diagnose Vacuum Pump failure. Was this video helpful? If so, make sure to like it, and be sure to subscribe to our .

GM under investigation for faulty brake vacuum pumps .

Nov 26, 2018 · I did have the vacuum pump replaced due to the recall about a year ago, I noticed it after that but the dealership said the pump and vacuum is holding well the entire time, even when it squeaks. They only guess they had was to replace the brake pedal assembly or the brake booster, but admittedly said that would just be throwing parts at it.

Diagnosing GM Transmissions - Chevy Hardcore

Other common problems our experts experience in both the TH350 and TH400 is the amount of automatic transmission fluid (ATF) in the vacuum modulator. Our trio of professionals suggested to check the modulator, pull the vacuum line off and check for signs of ATF in the hose or the the nipple of the modulator. There shouldn't be any.

General Motors issues recall for nearly 3.5 million .

Sep 11, 2019 · GM recalled an additional 310,000 vehicles in Canada earlier this year for the same problem. The millions of trucks and SUVs have a brake issue that GM said resides in aging pumps .

12213 – Brake Vacuum Micro Switch – 2011-2012 Chevrolet .

Jan 29, 2016 · Remedy. General Motors will notify owners, and dealers will replace a microswitch in the power brake vacuum pipe assembly, free of charge. The recall began on October 7, 2013. Owners may contact Chevrolet at 1-800-222-1020. GM's recall number is 12213.. Notes. Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800 .