Search Results for: TSB fix for no heat on passenger side

Power door locks not working — How to diagnose and fix

Learn how to diagnose and fix power door locks that don’t work Power door locks are pretty simple devices. Most have just two wires, and they lock and unlock when power and ground polarity are reversed. If your power door locks don’t work, the problem can be caused by a bad actuator, a bad door lock switch, an issue with the wiring harness, or a module issue. Symptom tips to diagnose a power door lock problem Is the problem limited to just one door? If so, that means the fuse … Read More

What’s the fix if I can’t shift out of park on Equinox

How to fix if you can’t shift out of park condition Equinox The Equinox shift interlock system is designed to prevent the driver from shifting out of park without pressing the brake pedal first. When the system fails, you may be able to start the vehicle but you can’t shift out of park. This article is written for the Chevrolet Equinox, but is common to many GM vehicles,  SUV’s and trucks How the GM shift interlock system works The shift interlock system works with the body control module (BCM), the … Read More

How to Diagnose and Fix Engine Misfire Code

Fix a misfire trouble code What causes a misfire trouble code? Here are the most common causes of a cylinder misfire, in order of priority • #1 Cause is worn spark plugs — A worn spark plug has too wide a gap. That causes a weak spark or no spark • Fouled spark plug— Excessive carbon buildup from worn piston rings or a rich fuel mixture and cause a spark plug to misfire • Faulty ignition coil — Driving too long on a misfiring spark plug causes the ignition coil … Read More

Fix high HC and failed emissions test

How to deal with failed emissions test and high HC What causes high HC? If you’ve failed your emission test due to high HC readings, this post is for you. Let’s start by understanding what things cause a high HC reading. A high HC reading means the test found high HC (hydrocarbons) in your emissions. In other words, too much gas is left in the exhaust after combustion. High HC can be caused by improper combustion, where: • Combustion didn’t occur due to misfire (weak spark or no spark due … Read More

Discover What Belt Dressing Does (and Does Not Do)

Belt dressing does stop belt noise temporarily, but no, it doesn’t fix the problem Belt noise; squeal, chirp or whine are caused by one of four things and belt dressing can’t fix any of them. Spraying it on your belts may give you a temporary reprieve from the noise, but it doesn’t fix the root problem of: • Improper belt tension (too loose) • Worn out or glazed belt due to slipping • A binding/sticking idler or rotating component • A component that’s out of alignment. What’s in it? Belt … Read More

Fix a Jeep U0404 code

Fix a Jeep U0404 code by cleaning the shifter mechanism and testing the electronic shift module A Jeep U0404 code is quite common. It’s defined as Implausible Data Receiver from ESM. The electronic shift module (ESM) is located in the console and connects to the shifter mechanism. It reports a digital signal to the transmission control module to tell it which gear you’ve chosen. What causes the Jeep U0404 code and ESM failure Because the ESM sits next to the shifter, it collects debris like hair, coffee, soda, dust and … Read More

P0455 code: What it means and how to fix it

Learn how to diagnose and fix a P0455 code — Evaporative Emission Control System Leak Detected (Gross Leak) If your vehicle’s check engine light is illuminated and you retrieve a P0455 code, that means you have an issue with the Evaporative Emission (EVAP) Control System. This system is designed to prevent gasoline vapors from escaping into the atmosphere. A P0455 code specifically points to a leak detected in the EVAP system. The Evaporative Emissions system applies a vacuum to the fuel system after you fill with gas. If the system … Read More

Fix for melted headlight connector

Ceramic Fix for melted headlight connector After replacing a melted headlight connector, make sure it doesn’t happen again by installing a ceramic headlight wiring harness. The harness connectors are build from ceramic so they won’t melt. Simply plug one end into the headlight bas and the other end into the new pigtail. That moves the pigtail away from the heat and prevents it from melting. Ceramic headlight harnessess by Standard TechSmart ©, 2020 Rick Muscoplat

Radiator fan not working: How to diagnose and fix

Learn how to diagnose a fix a radiator fan issue If your engine is overheating and you find the radiator fan not working, there can be several reasons. Here are the five most common causes. Blown fuse — electric radiator fans Check the fuse(s) for the electric radiator fans. If one or more fuses are blown and the replacement fuse blows as well, check each fan blade for debris blocking rotation. If none found, manually check for the ease of rotation. If the blade is hard to turn, the motor … Read More

Chrysler Evaporative Emissions System — How it works

Learn how the Chrysler evaporative emissions system works and what fails The Chrysler evaporative emissions system is different than most other EVAP systems. Chrysler has relied on some form of natural vacuum leak detection for several decades now. Here’s how it works. All vehicle manufacturers are required to build test sequences to detect a possible leak of fuel vapors into the atmosphere. They can do this in two ways: by adding pressure to the system or by pulling a vacuum on the system. Starting in 1996 Chrysler used a pressure … Read More