Easy lifehacks

When did the Vortec engine head come out?

When did the Vortec engine head come out? For those who may be new to the game, the Vortec head was first introduced on the L31 350ci truck engines in 1996. Despite their journeyman use, these heads flow dramatically better than any other small-block Chevy production head, which makes them popular with just about anybody who wants to build a mild street small-block. What kind of heads do you need for a 4.3L V6? Stock 1987-1995 4.3L V6 heads have similar flow rates from idle to 4,000 RPM. However, a 4.3L V6 engine that is designed for racing will not...
Other

What kind of engine does a military Humvee use?

What kind of engine does a military Humvee use? These engines are configured for the military HMMWVs. The 6.5L detuned engines are a direct replacement for the 6.2L engines. Sensors, wiring harness may differ through varies makes. General Motors 6.2 Liter Diesel Non Turbo late Model with rear EIG seal. When did the Hummer H1 first come out? The HUMMER H1 (1992) was initially created for military use from 1992 to 2006 by AM General and GM. It is a four-wheeled drive utility vehicle with a design resembling the M998 Humvee. What kind of paint does a 1989 Hummer H1...
Easy tips

What does PC solenoid 3 do on a Chevy?

What does PC solenoid 3 do on a Chevy? PC solenoid 3 regulates transmission fluid pressure to the R1/4-5-6 regulator valve which controls pressure to the reverse and low clutch and the 4-5-6 clutch. The Transmission Control Module (TCM) calculates gear ratio based on the RPM signals from the automatic transmission input speed sensor (ISS) and the output speed sensor (OSS). What is the diagnostic code for pressure control solenoid C? P0796 is a diagnostic trouble code (DTC) for "Pressure Control Solenoid C Performance or Stuck Off". This can happen for multiple reasons and a mechanic needs to diagnose the...
Easy tips

What to do about a broken transmission on a GMC Acadia?

What to do about a broken transmission on a GMC Acadia? An auxiliary transmission cooler can do a lot to help keep the temperature down. Another common issue with the GMC Acadia 6T75E transmission is broken wave plates. These metal disks help to lock gears together during a shift. How to prevent a wave plate related transmission issue / failure? Under GMPP, the dealership had to drop the engine and transmission, and then remove the transmission and split the cases. Since the cases were being split, I had them also replace the 3-5-R plate (actually, it comes in a kit...
Easy tips

Are fuel injectors covered under powertrain warranty?

Are fuel injectors covered under powertrain warranty? Normal powertrain warranties cover the engine and all of it's components. This typically covers everything in the engine block including the cylinder block and heads, the engine's seals and gaskets (including the head gasket), the fuel injectors, and the water and oil pumps. How long is the warranty on a GMC Truck? Chevy and GMC’s powertrain coverage is slightly shorter at five years or 60,000 miles. This is much less than some automakers that extend powertrain coverage up to 10 years. However, the 2500 and 3500 Series Heavy Duty pickups equipped with 6.6L...
Easy lifehacks

Where is the pressure relief valve on a Duramax LBZ?

Where is the pressure relief valve on a Duramax LBZ? This is the pressure relief valve located in the driver's side fuel rail on the 2004.5 - 2007 Duramax LLY & LBZ engines. These valves are known to go bad and open prematurely causing a "fuel rail PSI low" problem. Once a valve is weakened it tends to get worse. Can a fuel rail high pressure relief valve go bad? These valves are known to go bad and open prematurely causing a "fuel rail PSI low" problem. Once a valve is weakened it tends to get worse. Replacing the valve...
Common questions

What was the new GMC Yukon in 2001?

What was the new GMC Yukon in 2001? New for 2001 is the luxurious Yukon XL Denali. (GMC has offered a Denali version of the shorter Yukon since 1998.) Based on the 4WD Yukon XL 1500, the Yukon XL Denali packs a bigger engine and more sophisticated full-time all-wheel-drive, and makes standard nearly every option offered on the regular Yukon XL models. Is the GMC Yukon XL an extra large SUV? Folks who truly need a size extra-large sport-utility will find the Yukon XL hard to beat. All-new and tremendously improved for the 2000 model year, the Yukon XL has...
Other

What can a check engine light be?

What can a check engine light be? The light could be a minor issue, such as a faulty gas cap, or it could mean something more serious, such as a misfiring engine. The check engine light — more formally known as the malfunction indicator lamp — is a signal from the car's engine computer that something is wrong. Why does the Check Engine light come on? When the Check Engine Light comes on, that means that Trouble Codes, likely identifying the causes of the issue you are having, have been stored in your car’s computer. The fastest way to resolve...
Common questions

What do you need to know about AC pressure switch?

What do you need to know about AC pressure switch? The AC pressure switch is a safety switch that is mounted on both the high and low sides of the air conditioning system. It monitors the pressure of the refrigerant on its respective side of the system. There is a high side pressure switch, and low side pressure switch, and they both serve to monitor the system for pressure faults... What happens when your air conditioner pressure switch goes bad? When you turn on the air conditioning, you expect to feel cold air pour out. However, when the AC pressure...
Most popular

Why is my brake light not turning on?

Why is my brake light not turning on? A problem in the brake light switch defect can stop the brake lights from turning on when a driver presses on the pedal to slow down. Subaru believes certain cleaning products used inside the car can gunk up the switch's electrical contacts. Is it safe to drive with a faulty brake light switch? A car with a faulty brake light switch is UNSAFE to drive. In most cars, the brake light switch is installed right above the brake pedal. Inside, it has a one- or two-way electric switch. The most common symptom...