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Melted headlight connector — what causes it and how to fix it the right way What causes a headlight connector to melt? The #1 cause of melted headlight connectors is too small a wire gauge from the factory It’s not uncommon to see a 20-gauge wire harness for headlights. With the headlights connectors packed into tight places with little airflow, the combination a wire gauge that’s too small creating heat from resistance, lack of airflow, and heat from the headlight bulb, you wind up with a melted connector. The melted … Read More
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Secondary air injection system incorrect flow detected — Diagnose and fix Secondary air faults are common on older vehicles equipped with a secondary air system. You may be alerted to a secondary air problem by any one of the following trouble codes: P0410 Secondary Air Injection System Malfunction P0411 Secondary Air Injection System Incorrect Flow Detected P0412 Secondary Air Injection System Switching Valve A Circuit Malfunction P0413 Secondary Air Injection System Switching Valve A Circuit Open P0414 Secondary Air Injection System Switching Valve A Circuit Shorted P0415 Secondary Air Injection … Read More
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Headlights won’t turn off — How to fix There’s no simple one-size-fits-all solution to the issue of headlights won’t turn off because every car is wired differently. Let’s take a look at the possibilities: • Headlight switch is bad • Headlight relays contacts are stuck • Daytime running light module is bad • Body control module is bad • Welcome light or auto light sensor/module is bad Headlight wiring diagrams Older vehicle using just a headlight switch Let’s take a look at three possible headlight wiring diagrams. In the top … Read More
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The Mechanic Doctor – Resources for Amateur and Pro Auto Mechanics
Car trailers are used for transporting items over long distances. Both commercial and private businesses use trailers. It’s essential to
The post How To Inspect A Car Trailer Before Purchasing appeared first on The Mechanic Doctor.

The Mechanic Doctor – Resources for Amateur and Pro Auto Mechanics
The ELD requirements ruled by the FMCSA are complex and in-depth requirements on how electronic logging devices must act. In
The post What Information Can You Edit in Your ELD? appeared first on The Mechanic Doctor.

The Mechanic Doctor – Resources for Amateur and Pro Auto Mechanics
Going on a camping trip is a great way to experience the beauty of nature and bond with family and
The post A Step-By-Step Guide to Planning Your First Campers Trip appeared first on The Mechanic Doctor.

The Mechanic Doctor – Resources for Amateur and Pro Auto Mechanics
Car accidents are a significant but preventable cause of death. In 2020 alone, there were 607 child passenger fatalities and
The post Your Ultimate Guide to Children’s Car Seats appeared first on The Mechanic Doctor.

The Mechanic Doctor – Resources for Amateur and Pro Auto Mechanics
Extended car warranties can provide additional coverage and peace of mind for car owners, but what about car batteries? Are
The post What You Need to Know About Car Batteries and Extended Car Warranties appeared first on The Mechanic Doctor.

The Mechanic Doctor – Resources for Amateur and Pro Auto Mechanics
With over 100,000 car accidents happening each year, car insurance is a must. While there are a lot of factors
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