Certified Mechanics June 13, 2013

Some Chicago car owners wonder why Triangle Auto Service and other Chicago auto repair shops charge a fee for diagnostic services.
Think about it: When you hire a local Chicago HVAC technician to check out a problem with your air conditioner you’ll probably pay a diagnostic fee. When you visit your Old irving park doctor for a health problem, you pay the physician to diagnose the ailment and of course for the tests that go along with it.
So receiving a diagnostic charge at Triangle Auto Service for a tricky automotive problem shouldn’t be a surprise. In the Chicago area, automotive diagnostics can cover quite a range. If you hear a noise in your Minivan brakes when you slow down in rush-hour traffic on a busy Illinois freeway, you pull off the next off-ramp and take a quick visual check. That is usually enough to know what needs to be done. If you’re having an intermittent problem with your Minivan engine, however, Triangle Auto Service diagnosis may be much more involved.
Much of the Chicago car owners’s confusion comes when the problem involves the check engine light. The check engine light comes on when the engine management computer has sensed a problem.
There’s a common misconception among Old irving park, Jefferson park, and Norwood park drivers that the trouble code tells the Triangle Auto Service technician exactly what’s wrong. They wonder why there is a diagnostic charge – because the scanner quickly gave the diagnosis.
In reality, it is not that easy and straightforward. The computer monitors many sensors throughout the vehicle. When one of these sensors has a reading that’s out of parameters, the computer will record a trouble code and turn on the check engine light.
The Minivan computer’s trouble code just tells the Triangle Auto Service technician what engine parameter is out of range – not what’s causing it. The technician needs to determine the underlying problem that’s causing the malfunction.
There are many problems that could cause a troublesome sensor reading for Triangle Auto Service customers. The Triangle Auto Service service advisor makes a list of the most likely causes and begins tracking down the source of the problem. This takes time.
Chicago service centers subscribe to databases that document possible causes for all the possible trouble codes. The databases outline procedures for confirming a diagnosis and provide the documented repair. These databases are specific to each vehicle and engine combination.
Some diagnoses are quick and easy. Others are more involved, time-consuming, and difficult. Of course Triangle Auto Service wants to figure out what’s wrong with your Minivan and get you back on the road as quickly as possible.,,


Chicago General
Auto Repair

  • Towing Available
  • Car Heating & Cooling Systems
  • Certified Air Conditioning Specialists
  • Brake Service
  • Auto Emission Repair
  • Extended Vehicle Warranties Accepted
  • Routine Maintence Packages
  • Fleet Accounts Welcome

Heavy Duty & Industrial Vehicle Applications

  • New Complete Truck Radiators in Stock
  • HD Truck Radiator, Repair, Recore, Replace
  • Fork Lifts, Busses, Earth Moving Equipment
  • Fuel Tanks, Repair, Replace, Flush
  • CAC Recore, Repair, Replace, Clean
  • Steam Coils, Repair, Replacement
  • Aluminum Welding
  • Fleet Accounts Welcome

Wholesale & Extended Warranty
Auto Parts

  • Same/Next Day Delivery
  • 12/12 Auto Parts Warranty
  • Power Steering Racks & Gears
  • Complete A/C Line
  • A/C Compressors w/Clutch
  • Radiators & Condensers
  • Cooling Fan Assemblies
  • Labor Warranty Available