GM Recall Update

Via CBS News, “General Motors (GM) on Tuesday doubled to 1.6 million the number of small cars it is recalling to fix faulty ignition switches linked to multiple fatal crashes.”

Read more from CBS News.


What’s an HPOP Hose Used For?

An HPOP hose transports engine from the HPOP to the engine to lubricate things like the engine’s bearings, pistons, and camshaft. HPOP stands for high pressure oil pump and is often used instead of a standard pump for those that want to replace iol in their engine at a faster rate.

A high pressure oil pump hose is specifically designed to accomodate the higher pressure of the engine pump. Using a standard hose with a high pressure oil pump could lead to serious problems, such as a hose rupture. The hoses are connected to both the high pressure oil pump and the engine rails using special fittings that should allow for an easy disconnection in the future.

Each high pressure oil pump has two hoses, one on the driver side and one on the passenger side. The hose on the driver side is connected to the forward fitting on the high pressure oil pump. The passenger side hose is connected to the aft fitting. The other ends of the hoses are then connected to fittings on the cylinder head.

If a person believes their oil pump is operating with less pressure than it should, they could test the connections of the HPOP hose to the fittings. Gently pulling on the HPOP hose will indicate whether the hose is completely connected. The hose shouldn’t come free. If it does, then it hasn’t been installed correctly.

Dodge Ram History

dodge ram

The Dodge Ram truck line was initially introduced in 1981, and is now on it’s fourth generation.

Major engine improvements became standard in 1988, with the old slant-six engine replaced by a new V-6 offering more power. The standard time-honored 318 cubic-inch V-8 was given a fuel-injection upgrade. A turbo-charged Cummings six-cylinder in-line diesel engine featuring direct fuel injection was introduced that year, helping boost Ram sales.

Engine upgrades for 1992-93 2500 and 3500 models included multi-port fuel injection and higher compression cylinder heads. This extra power option was designated Magnum.

In 1994 a sleek new re-design inspired by big rigs was offered, which quickly became popular. In 1998 a new dashboard, dual airbags plus upgraded interior became standard, as was the QuadCab model with small rear doors. Sales reached over 400 thousand in 1999, at about the time that a new eight-liter V-10 engine was offered on the 2500 and higher models for extra towing power.

The all-new third generation Ram 1500 appeared in 2002, with higher models getting the new style a year later. This significant upgrade covered the drivetrain and suspension as well. Sales reached a new record of about 450,000.

A larger Cummins diesel engine became available in 2005, while a new hemi-V8 arrived in 2006 that featured cylinder-deactivating capability for increased fuel economy.

The latest generation became available in 2009, the same year that Ram Trucks became a separate brand. A real Crew Cab model featuring four doors was offered, as well as a heavy-duty 3500. The 1500 got minor exterior upgrades in 2013.

Initially production began at Warren Michigan, where most models have been built up to 2014. The Ram 1500 truck model have also been built at the Saltillo assembly plant in Mexico. Ram 1500 production in Fenton Missouri shut down in 2009.

The popularity of the Dodge Ram truck

Ram trucks are now the only ones available with a manual transmission, since competing makes have gone entirely to automatic transmissions.


Install Fuel Injector in Duramax Engine

Duramax engine

Whether you own an older or newer GM Duramax turbo-diesel, you may want to install a fuel injector to replace a tired one. It’s not overly difficult if you have some engine experience. Historically, early Duramax engines were prone to injector failure, requiring frequent replacement.

The Short Version – Steps to Install Fuel Injector on Duramax

  • First, drain the radiator coolant (put aside) and disconnect the negative terminal from your battery.
  • Remove the electrical connector from your air inlet duct on the left side of the turbocharger.
  • Disconnect all electrical connectors from your wiring harness and from the barometric sensor.
  • Take off the engine wiring harness clip before removing the connector for the glow plug controller.
  • Disconnect the crankcase ventilation hose. then disconnect the outlet duct for the air cleaner.
  • Remove the fuel filter and its bracket, along with removing the fuel lines from the injectors and their electrical wiring.
  • Clean away any debris near fuel injectors and fuel lines with a clean cloth or compressed air.
  • Take off mounting bolts for the fuel injector bracket.
  • Use injector removal tool and a flare nut wrench to take out the damaged fuel injector. Examine the injector copper washer and O-rings and replace when necessary.
  • Install the new injector, while fastening its mounting bolts for the fuel injector bracket.
  • Tighten mounting bolts with a torque wrench to 22 foot-pounds.
  • Re-attach injector electrical wiring, fuel lines and fuel line clips. Use a torque wrench to secure fuel line retaining nuts. Tighten to 30 foot-pounds.
  • Re-attach all remaining items by reversing the first six steps that detach these components. Don’t forget to put back the coolant you drained in the first step.

As you can see, the preparation and disconnecting phases are critical to successful installation of fuel injectors. Follow the sequence noted and reverse the steps in proper order to ensure a proper installation.

How to Install a HPOP Harness Upgrade

Follow the instructions below to install a HPOP harness upgrade.

  1. Battery disconnection: do not reconnect until complete to avoid fire or shocking risks.
  2. Follow instructions for installation of Electronic Signal Processor (ESP) and harness.
  3. Connection of the Temperature Harness and ESP harness instructions:
    1. Remove plugs from sections 4 and 5 in brown connector D of the ESP.
    2. Use needle nose pliers to pull the orange wedge lock from connector D.
    3. Insert black terminal wire into section 4 of connector D, push until it snaps into place.
    4. Insert green terminal wire into section 5 of connector D, push until it snaps into place.
    5. Note: when fully seated, the terminals will close flush with the top of connector.
    6. Pull firm on wires to confirm if properly seated.
    7. Push orange wedge-lock into its original position.
    8. Reconnect the brown D connector to the ESP.
  4. Look for the factory ICP (injection control pressure) sensor and disconnect it from its harness.
  5. Route the ISSPRO HPOP Harness toward the sensor. Plug the harness into the ICP sensor, and then plug the truck harness connector into the last connection of the HPOP harness.
  6. For those installing power adding modules to the ICP sensor, connect the ISSPRO HPOP Harness right to the ICP sensor, then connect the truck’s harness between the module’s harness.
  7. Connect the HPOP pressure gauge on to the ESP by following the ESP instructions about how to do this. NOTE: if you are drilling a hole for mounting the gauge, the size of the hole should be 2.040″.
  8. Make sure all the wire is secure and that no sharp edges or moving parts will cause chaffing. This is possible by routing wires through the factory provided wiring harness sheath, using wire ties, and sheaths, and using grommets that are appropriate when making passage through the firewall.

How to Install an EGR Cooler in Duramax

Common to both gasoline and diesel engines, the Chevy Duramax uses a valve to drive the EGR (Exhaust Gas Recirculation) Cooler system. Along with reducing exhaust gas temperatures by up to 800 degrees, the EGR cooler also improves gas mileage and greatly reduces harmful emissions. The valve is the most important component and eventually clogs, needing replacement. To install or replace your EGR Cooler valve, follow these steps.

  • Disconnect the negative terminal of your battery to avoid unwelcome shocks.
  • Find the engine exhaust manifold, which will be on the driver’s side of a Duramax engine.
  • Locate and follow the tubing connected to the manifold to the other end. It’s connected to your EGR system.
  • Disconnect the wiring harness. Press in on the release tab. This will unlock the harness.
  • Loosen and remove the clip on the metal tubing coming from the exhaust manifold.
  • You can then take out the EGR cooler valve after removing the Torx bolts that hold it in place.
  • Place the new EGR valve in exactly the same position as the old one, securing it with the Torx bolts.
  • Re-attach and replace the manifold exhaust tubing. Be sure tighten the clasp.
  • Re-plug in the wiring harness, snapping it in place.
  • You can now reconnect the battery cable.

Be sure to test your installed EGR Cooler valve by starting your engine. Listen for moving air. If you don’t hear any vacuum-like sounds, you installed the new EGR cooler valve properly. Your EGR Cooler system–and your Duramax diesel–should now conserve fuel help save the environment.

Mercedes-Benz Sprinter History


The Mercedes-Benz Sprinter, launched in Europe in 1995, is a light commercial vehicle with various body styles, and over the course of its history, many badges and names as well.

The first generation Sprinter, badged and marketed by Mercedes-Benz, was designed to replace the well known Mercedes-Benz TN, and immediately was voted the 1995 International Van of the year. This vehicle was also sold in Japan under the Mercedes-Benz badge but with the name Transporter T1N.

In 2001 came the launch of the same vehicle in the US, and although it was still known as the Sprinter, it had been re-branded as Freightliner. After 2003 you could get versions assembled and branded by Dodge, who chose the Sprinter as a replacement for the Dodge Ram Van.

2006 saw the debut of the second generation Sprinter, known also as the NCV3 (New Concept Van 3), in Europe and other countries. The American NCV3 arrived in 2007, with slightly differing sizing and options, but was still basically the same as the European second generation vehicle that was voted Van of the Year in 2007 and 2008 by the Professional Van and Light Truck Magazine. Production of the NCV3 continues in Europe and Argentina (after a Latin American hiatus in 2011), but Dodge ceased production in 2010. This vehicle was also re-badged, re-engined and sold as the Volkswagen Crafter.

In 2014 a newer version was introduced, essentially the same as the second generation Sprinter, but a more styled look, fuel efficient engines, and several driver assistance technology options such as the Blind Spot Assist and Collision Prevention Assist. With these enhancements, the future for the Mercedes-Benz and Freightliner Sprinter is looking good.