John's Citgo
49 Central Street, Ipswich, MA 01938 978.356.9763

General / Misc

Alt + /

Don't Blow a Gasket! (Valve Cover Gasket Replacement)

When you head out to your vehicle after it's been parked and notice oil leaking underneath it, that's something to have looked at right away.  Oil leaks mean your oil level is probably low, and r...
Published on: Jan 26, 2025

Getting Off to a Running Start (Starter Replacement)

When you start your vehicle’s engine, there’s another motor that makes that whole process possible.  It’s called the starter, and it’s a small electric motor that gets you...
Published on: Dec 01, 2024

Don't Store These in a Cold Vehicle (Items to Avoid Storing in a Freezing Vehicle)

The other day, a man walked into a restaurant carrying a can of paint. He had just bought the latex paint at the local home improvement store, and he was stopping for lunch. "Latex paint is water-bas...
Published on: Nov 01, 2023

Tips on TPS (The Throttle Position Sensor)

When you step on the accelerator, you expect your vehicle to speed up, not slow down.  But, what if it doesn’t?  That can be a big problem. The answer may be a problem with the sensor...
Published on: Aug 27, 2023

The 20.9 Percent Factor (Oxygen Sensor)

Do you know what gas makes up 20.9% of the air we breathe? It's oxygen.   Oxygen is an important part of the combustion process that enables your engine to make power.  The amount of ox...
Published on: Jun 16, 2023

Mirror, Mirror (Door Mirror Problems)

You've probably seen them lying around at the side of the road: someone's outside rearview mirror that's been knocked off by a driver’s not-so-perfect driving.  And you realize the person w...
Published on: Sep 04, 2022

Certified Technicians

Today’s vehicles are rolling computer networks with multiple processors, sensors, and miles of wiring. The mechanical elements from the suspension to the engine valve train are extremely sophist...
Published on: Jun 26, 2022

The Foggiest Idea (Fogged Windows in Cold Weather)

In cold weather, you may notice your windows fogging up. Then you can't see where you're going, and suddenly you and those around you are in danger. So, what causes your windows to fog up in cold weat...
Published on: Jun 14, 2022