Here is a good one guys.

Here is a good one guys.

Here is a good one guys. 4cyl Volkswagen , for all diag purposes its a 1993 Passat 2.0 9A 16v. Starts up and runs without a problem, not under load, but there is a dead cylinder, #1, under all conditions. Fuel is 60# to the regulator, 3 bar reg. no vacuum leaks on any cylinder. Spark is good with the standard distributor setup, all 4 cylinders sparking strong. COlorTune in cylinder one confirms no fire but a strong spark. Using something such as brake cleaner it will fire a couple cycles with a white flame(lean i guess) and go dark again although the spark plug is wet so it is getting fuel. Timing is running about 25-30 degrees advanced at an idle and up to 35 under acceleration with no load. Valve timing is dead on. So the basics are all there, and three cylinders purr like a kitten, what are some other possibilities to look at?

That’s not ALL the basics. Fuel, Spark and COMPRESSION are the 3 basics.
What is the cylinder compression reading?

Jim O’Neill
Chino Autotech Inc.

You May Also Like

The Hidden Expense of Inexpensive Brake Pads

With premium products, it’s often the “extras” that people don’t consider when comparing them to lesser brands.

Like many product lines in our inventories, brake pads are often dual or even triple lined. To service a wide variety of vehicles and customer types in a dynamic market, it has become a necessity to offer various price points on one of the most critical safety items we offer. 

AAPEX Web Training Series Set to Begin This Month

Online educational series to run from May to October, costing attendees nothing.

Do You Suffer From CED? Good News – It’s Curable

The creep of Customer Experience Decline can take hold if you allow your shop to lose focus.

Tool Time Podcast: CTA Tools

Nadine Battah and Eric Garbe learn about CTA Tools’ history and innovative technology.

The Purge: Flushing & Filling the Coolant

This job isn’t needed as often as it used to be, but it’s still important.

Other Posts

WAI Releases 116 New Part Numbers

The new part numbers include starters, alternators, wiper motors, sensors, and transfer case motors.

WAI Releases 116 New Part Numbers
Standard Motor Products’ VVT Program Expands

SMP said the program offers more than 600 part numbers for import and domestic vehicles, with new numbers added each month.

Standard Motor Products’ VVT Program Expands
Cummins, Daimler Truck and PACCAR Form Joint Venture

The completed joint venture is now known as Amplify Cell Technologies.

MEMA Aftermarket Suppliers’ BMC to Host Summer Meeting

The Brake Manufacturers Council meeting will be held on May 31, in Naples, Florida.