Tag Archives: Diagnosis

Clogged Radiator Causing A/C Problems

Posted on August 20, 2018 by Dan

Another car with an air conditioning problem came in. This time, the air conditioning would work fine for a little while, but then would completely stop working. I hooked up the A/C machine to see what the pressures were doing, … Continue reading →

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Cut & Capped A/C

Posted on July 23, 2018 by Dan

I was trying to figure out why a Chrysler Town & Country didn’t have any air conditioning in the rear. Usually when you don’t have any air conditioning it’s because there was a leak and all the refrigerant leaked out, … Continue reading →

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The Wrong Way To Wire Accessories

Posted on May 17, 2018 by Dan

A Honda Civic came in with complaints of some strange electrical problems. The first step after checking for diagnostic codes was to check for any aftermarket add-ons, because if poorly installed, they can mess with the systems on the car.

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My Truck: Brake Light Switch Wiring

Posted on February 22, 2018 by Dan

As I’ve mentioned in a previous post, my 1990 Ford F-250 has had its wiring hacked together by previous owners. Recently this came to light again as my brake lights stopped working.

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Dead Engine Autopsy

Posted on February 15, 2018 by Dan

We recently had a Civic in the shop with zero oil pressure. The oil was full, but while running there was no oil coming out of the oil filter or pressure gauge port. That meant that it needed a new … Continue reading →

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It May Look Like A Walnut

Posted on February 1, 2018 by Dan

And it is a walnut. But walnuts have caused a surprising number of problems in cars compared to other plant material.

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OBD Port Not Working? Check The Fuses

Posted on October 23, 2017 by Dan

If you ever plug a scanner into the OBD-II port on a car and it doesn’t turn on or can’t connect, chances are it’s just a blown fuse, as they often share with some other circuit.

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2001 CR-V Transmission, Speedometer, & Alternator Problem

Posted on September 21, 2017 by Dan

I’ve learned a lesson about diagnosing strange problems. When doing electrical diagnosis you should always check fuses early on, but I’ve now learned that you should also check fuses if you have a strange problem, even if it doesn’t seem … Continue reading →

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OBD-II Connector Location

Posted on September 11, 2017 by Dan

Every car sold in the US since 1996 is required to be equipped with an OBD-II connector so all scan tools, and in some cases state inspection computers, can connect to them and read data. There are general requirements for … Continue reading →

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Cheap Work Truck Repairs

Posted on August 3, 2017 by Dan

Last week I spent my time working at a summer camp, something I do every summer. I’ve done a little work on some of the camp vehicles in the past, but this year I got to do a couple full … Continue reading →

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