Careful — a critical tool on your service truck may not be doing its job. How long has it been since you checked the performance of your vacuum pump? Many vacuum pumps in the field are not working ...

Service technicians need to completely evacuate a refrigeration system any time they open the system to the atmosphere. Vacuum pumps and micron gauges are the tools you need to use for this. Are yours ...

Trouble ranging all the way from bad gas mileage to burned valves has been traced to faulty fuel I pumps. But faulty fuel delivery is often due to some bad condition entirely outside of the fuel pump ...

Normally the assist is there. Sometimes the problem is the engine you couldn't quit building. Big cams with big lift can cause real low vacuum situations at idle and low rpm, especially with Ford ...

In the quest for that "rumpity-rump" sound, and all the performance that goes with it, your engine will more than likely lose the consistent flow of vacuum needed to aid your foot when the time comes ...