Thanks for the share. I didn’t watch the whole thing yet but it’s certainly an amusing video it seems. Though he seems a bit clueless about the car itself, however that doesn’t mean he’s not capable of working on it. My small town mechanics work on a lot of trucks, so the Q45 isn’t too foreign for them considering it shares a lot of truck attributes.
However, I would have to stop and tell him; the Q45 did NOT compete with Cadillac lol. If you look at the Mercedes and BMW engines of similar years, the Q45s were actually going after that…with a little hint of Rolls Royce Silver spur on the quarter panel area. The i30 was more Cadillac. The Q45 was the v8 S500 Mercedes lol.
Anyhow, another update: the issue seems to be cured!! But this is very weird how it happened: so I cleaned the eVap lines of charcoal again from the old canister. Even though I blew out a lot the first time, there was still more left somehow, and it clogged right back up, though it didn’t trigger a purge valve code like it was before. This time, I spent $30 on a plug-in tire inflator, so I could really have time to play with it, versus using the timed gas station pumps.
I put the air hose on the back of the purge line behind the tire, and the engine. The gas station tire pumps are too high pressure and it would keep blowing back out due to the carbon clog.
After that, I drove on the highway for 30 miles. It was still hesitating, pretty bad. Even on the Highway, I was feeling it. I pull off to get gas, and the temperature gauge starts going up! I fill the tank with premium, and when I return to start the engine, the temperature gauge was heading towards H while the engine was off. I’ve already replaced fan, radiator, thermostat and water pump, so I’m pissed. Even though it was 100 degrees out.
I pulled out my phone to scan codes: EGR and knock sensor code got triggered. Cleared the codes. Since then, I’ve driven 800 miles with no issues. No hesitation, no overheating, no extra codes. Only codes showing are the same oxygen sensor codes that have always been there.
So I don’t know, maybe cleaning the evap lines made it to where I really do have to put premium in now. It was without flow for who knows how long. The overheating part puzzles me, no leaking coolant, though there might be a head gasket issue