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5 days ago · FenderBender is the leading trade magazine covering leadership, management, operations, and strategies for collision repair shop owners, operators, and managers.
Living in a vacuum: Crankcase ventilation system testing
Jun 28, 2022 · The crankcase pressure wanders between -2.5 to 4 inches of water column (-7 to 10 millibar, well below the specification for this engine of -30 millibar, plus or minus 5 millibar). If there is less vacuum in the crankcase, this would be an over-pressure condition (which means air is leaking into the crankcase).
A look at alternative refrigerants to R-134a - FenderBender and …
Feb 4, 2022 · R-744 is the refrigerant name for carbon dioxide (CO 2) and has been in use as a refrigerant since the mid-nineteenth century reaching its peak use in the 1920s.With the introduction of CFCs that operated at much lower pressures, the use of CO 2 as a refrigerant declined. While many automotive manufacturers are using R-1234yf in new vehicles, German …
Diagnosing EVAP systems | FenderBender and ABRN
Oct 1, 2016 · This article was originally published Oct. 1, 2016. Some of the information may no longer be relevant, so please use it at your discretion. Perhaps one of the toughest jobs in the automotive field is diagnosing small leaks, especially A/C and Fuel Vapor (EVAP) leaks.Finding these leaks can be time consuming and frustrating to say the least.
Unlock the secrets of electronic parking brakes
Mar 21, 2022 · Remove the screwdriver blade from the handle and install the long brake release tool. Remove the access plug near the front of the spare tire well, insert the tool, engage the brake motor and "unscrew" to release the brakes. Advise technicians to not leave the tool engaged, just in case the system runs the motor.
How to read automotive wiring diagrams - FenderBender and ABRN
Jan 27, 2017 · Figure 4 is a typical automotive wiring diagram that shows a radiator cooling fan circuit. Two fuses (40 and 10A) power the circuit and are directly connected to the vehicle’s battery (Hot at all times). There are three relays that connect power to the cooling fans and control low and high speeds.
The state of OEM certification programs - FenderBender and ABRN
Dec 4, 2023 · Almost four years ago, I wrote an article titled “Value in OEM Certification.” The article gave an overview of what a collision repair business, particularly an MSO, would look at in terms of equipment requirements and costs, education requirements, certification fees, paint and material requirements, parts purchasing requirements, inspections, audits, dealership …
A Solid Approach to A-Pillar Repairs | FenderBender and ABRN
Dec 31, 2019 · The most basic design of the upper A-pillar is a two-piece, inner and outer configuration that may also include reinforcements at specific locations to add strength. These locations are usually at the upper and lower ends of the windshield location. For repairs this is the simplest type of construction to repair, section or replace.
Misfire detection: A new approach | FenderBender and ABRN
Feb 3, 2020 · Misfire effects and OBDII. OBDII legislation regulates two different effects from engine misfire: An engine misfire that can damage the catalytic converter. An engine misfire that increases the tailpipe emission levels more than 1.5 percent over the Federal Test Procedure (FTP) standards.
MIG brazing basics | FenderBender and ABRN
Aug 23, 2017 · MIG brazing is a non-fusion process. Conventional steel Gas Metal Arc Welding (GMAW) is a fusion process that fuses the electrode wire with the base metal. GMAW uses more heat to fuse the materials together. MIG brazing can be done at a much lower temperature, causing a smaller heat-affected zone (HAZ).
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