Tech Tip: No Start in Cold Weather Due to No Weep Hole

2022-10-15 12:56:54 By : Ms. Zero Tse

Inspection Tips For Chain-Driven Water Pumps

Why Alternators Are Subject To Ripple Voltage

Exhaust Gas Recirculation Operation and Diagnostics

Clearing Up Import Coolant Confusion

Inspection Tips For Chain-Driven Water Pumps

Why Alternators Are Subject To Ripple Voltage

Exhaust Gas Recirculation Operation and Diagnostics

Clearing Up Import Coolant Confusion

Gasoline Direct Injection: Total System Diagnostics

Sponsored By Carter Fuel Systems

Modern gasoline direct injection (GDI) engines have two fuel pump opportunities. You still have an electric pump in the tank, but a high-pressure fuel pump is on the engine. These two pumps work in unison, so the correct quantity of fuel is injected directly into the cylinder. If either pump can’t generate the pressure or volume commanded by the engine management system, it will cause driveability issues. In a 45-minute webinar, the experts from Carter Engineered Fuel Pumps will train you on how to diagnose the entire fuel system of a GDI vehicle.

Speakers Julio Ortego, Engineering Manager, Repair Products Andrew Markel, Director of Technical Content, ShopOwner

Sponsored By Carter Fuel Systems

ShopOwner includes technical and management content and is free to download and read.

Here are a few things that you need to know before replacing spark plugs in a BMW.

The Hyundai hybrid system has a motor control unit (MCU) and hybrid control unit (HCU).

Underhood Service targets repair shops that derive 50 percent or more of their revenue from the service and repair of under-the-hood systems. The expanding amount of knowledge and capital needed to keep up with technological advances has led these shop owners to concentrate on underhood systems, while also offering preventive maintenance services on most major vehicle systems. By subscribing, you’ll receive the ShopOwner digital edition magazine (12 times/year) featuring articles from Underhood Service and the Underhood Service eNewsletter (twice weekly). Access to digital editions, contests, news, and more are ready for you today!

Underhood Service targets repair shops that derive 50 percent or more of their revenue from the service and repair of under-the-hood systems. The expanding amount of knowledge and capital needed to keep up with technological advances has led these shop owners to concentrate on underhood systems, while also offering preventive maintenance services on most major vehicle systems. By subscribing, you’ll receive the ShopOwner digital edition magazine (12 times/year) featuring articles from Underhood Service and the Underhood Service eNewsletter (twice weekly). Access to digital editions, contests, news, and more are ready for you today!

ByUnderhood Service Staff Writers on Jun 8, 2022

High underhood temps, increased power demands and vibration can damage alternators or starters. Sponsored by ACDelco.

Don’t settle for “almost” - it matters where the engine is manufactured or remanufactured. Sponsored by ACDelco.

Brake pads are thoroughly developed to produce the best result. This video is sponsored by ZF Aftermarket.

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This condition can be caused by condensation freezing in the muffler assembly. Follow this procedure for correction.

The customer may describe a crank, no start condition, in freezing temperatures. This condition can be caused by condensation freezing in the muffler assembly.Advertisement CORRECTION Raise the vehicle on hoist. Is there a weep hole on the end of the muffler as shown at the location in Figure 1? YES: This bulletin does not apply. Normal diagnostic efforts should be performed. NO: Proceed to Step 3. The weep hole must be drilled into the end of the muffler assembly as shown in Figure 1.Using a 3 mm (1/8 in) drill bit and a drill, drill a weep hole no deeper than 2.5 cm (1 in.) into the muffler assembly at the bottom lower corner.  Figure 1

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Technical resources to help diagnose and repair engine-related service issues.