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Hi Eric,
Do you carry tools or spare parts in any of your vehicles?
I always carry a basic tool set, jump leads, and 1 quart of each fluid for the vehicle in the trunk weather I’m driving 5 mins down the street or a multi-hour journey. For those “I’d rather have it and not need it” moments.
Hi Eric,
What would cause violent shuddering when accelerating more than 15% pedal travel? We’re talking space shuttle launch type shuddering. Never fails to start, never stalls, no codes. Fuel pressure indicates fine at idle and revving from a stop. Not checked while driving. New OEM fuel filter installed. Could this still be a fuel issue when the engine is under sudden load, or ignition leads/module breaking down? Thanks for your help as always.
Stay awesome.
Hi Eric,
Are there any tools you bought that made you enjoy being a mechanic again (disregarding the lift)? I know as a hobby mechanic there are times when repairs took half a day but after buying the right tool for the job you’re done in 20 minutes. It’s a magical experience I’m sure many hobbyist and professionals alike have experienced.
Hi Eric,
Happy new year and I hope all your hopes and dreams come true this year 🙂 Do you know what might cause an extreme build up of ash deposit on spark plug #4 on an inline 4? No coolant is being consumed, minimal oil consumption, I’m using premium gas and the other plugs had essentially no ash.
[IMG]http://i67.tinypic.com/30jsadi.jpg[/IMG]
Stay awesome.
Hi Eric,
Might you have something laying on the bench in front of you, or in the shop, that you could explain how it works? A car part, tool, equipment or otherwise. If this was tomorrow I’d call this segment ‘Tinkering Thursday’ #1
Stay awesome bro.
Hi Eric,
What are your car cleaning habits, both interior and exterior? Personally, I tend to keep the interior as show room as possible, since that’s where I spend most of my time, but I’m not OCD about it either. I just wash the outside once every 3-4 weeks as needed.
On a side note I clay barred my car last week (Audi A3) to remove outdoor house paint specks where it was covered in tiny paint dots from nose to tail by the time a terrible painting contractor was finished. It worked better than I could ever have hoped for (Top tip for your viewers). Plus a generous helping of Carnauba wax and the car looks mint now, despite being 14 years old.
Hi Eric, I have a juicy one for you:
2002 Audi A3 8L1 1.6L BFQ engine, manual.
Symptoms:
Intermittent high idle
Intermittent surging / oscillating revs at idle
Hesitation/ lag in throttle response (forever and always 🙁 )
Rev counter can be intermittently sporadic for 0.5-1.5 seconds at engine start up
Initially presented as lean o2 code B1S1 (o2 code now fixed, yet symptoms persist)Repairs so far:
Smoke tested. All leaks sealed. (as per your recommendation)
MAF sensor replaced
o2 sensor replaced / wiring loom inspected (as per independent Audi specialist)
Fuel pressure regulator replaced (as per independent Audi specialist)
Throttle body replacedI’m about to change both the cam and crank sensors over the weekend to try to see if it could be a faulty sensor related to the sporadic Rev counter as mentioned. I have the parts sitting in the trunk. I think the revs are taken from the crank sensor in my car and fuel injection taken from the cam. Logic is that one or both sensors are bad causing mixed signals to be interpreted by the ecu interfering with the injection pulse width. However the independent specialists did a gas analysis of the exhaust and everything is perfect, though maybe that was done while the condition was not presenting. Fuel pressure is perfect with no leaks after 30+ minutes.
There is no lack of power but the hesitation can be noticed below 2k revs and coasting at any speed can be a nightmare trying to predict when the car decides to engine brake which can take 1-3 seconds.
So my question to you is, do you think my logic is sound with replacing the cam/crank sensors and if, when replaced, the condition persists where do I look next? Throttle body loom, Accelerator Pedal Position sensor…?