Intake Manifold Leaks
January 19, 2009 by Eric · 2 Comments
Don’t know if it’s the season for it, or things tend to run in groups. I’ve had another run of several GM vehicles with intake manifold leaks of one sort or other. I’m not sure of the reasoning behind the plastic intake gaskets that are on most GM late model vehicles, but it certainly keeps Continue reading →
Chevy Vortec Mystery Coolant Leak
January 4, 2009 by Eric · 6 Comments
If you own a Chevrolet or GMC Truck with a Vortec Engine, you will eventually encounter the “Mystery Coolant Leak”. At first, it’s just an occasional low coolant light coming on. The coolant level is low, but there aren’t any leaks visible on the ground. Where is the coolant going? Eventually, months maybe, there are Continue reading →
Codes P0171 and P0174?
September 27, 2008 by Eric · Leave a Comment
A reader asks, “My Check Engine Light came on. I pulled the codes and according to AlldataDIY, I find P0171 Fuel Trims Too Lean Bank 1 and P0174 Fuel Trims Too Lean Bank 2. What would make the engine lean on both sides? Well, we can use some deductive reasoning here. A lean burning engine Continue reading →
My Chevy Vortec Is Misfiring
September 24, 2008 by Eric · 2 Comments
Your Chevy truck runs great and looks good. You feel good driving it. But now it idles a bit rough and feels a bit sluggish on acceleration. Do I have a misfire? Uh Oh, the MIL ( Check Engine Light) is on and flashing. What’s up. Well first off, understand why a MIL will flash. Continue reading →
The Incredible Mr. Wizard
September 24, 2008 by admin · Leave a Comment
There is a fixture around NASCAR circuit known as “Mr. Wizard” for his vast electronic and mechanical expertise, Nelson Crozier can be found at NASCAR Cup race sites serving as a consultant and troubleshooter extraordinaire for race teams. It’s said that nearly eighty-percent of the teams in NASCAR’s top racing divisions use the Nelson Specialties’ Continue reading →
Misfires On The Race Track
Written by Nelson Crozier aka Mister Wizard. Diagnosing and correcting a misfire that develops on the track can be far more frustrating than trying to figure out why a car will not start. There are, however, some similarities between trying to determine the cause of a miss and why a car will not start. Troubleshooting Continue reading →
Caravan No Heater
Does your heater not work too well on your mid 90′s Dodge Caravan. I recently had one in the shop that would run vaguely warm and took some time to get even that. The heater core seemed to flow well enough during a flow check, but didn’t seem to actually flow much when hooked up Continue reading →
