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Car Forum / BMW Cars / February 2005update question on knock and ping
93 325i, when cold, no knocking and pinging. when warm, knocks and pings. cyl head temp sensor? any thoughts? > 93 325i, when cold, no knocking and pinging. when warm, knocks and > pings. cyl head temp sensor? any thoughts? These temperature sensors tend to work or not. And when they fail, give a *very* rich mixture with the engine hot - so much so that it might not run. But you can check them with a DVM. I'd say the obvious one was the knock sensor.  Signature*If you must choose between two evils, pick the one you've never tried before Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. I'm sorry. I should have mentioned it does NOT have a knock sensor. >> 93 325i, when cold, no knocking and pinging. when warm, knocks and >> pings. cyl head temp sensor? any thoughts? [quoted text clipped - 6 lines] > > I'd say the obvious one was the knock sensor. > I'm sorry. I should have mentioned it does NOT have a knock sensor. Ah - sorry. Thought it had the 24 valve engine by then. Signature*It sounds like English, but I can't understand a word you're saying. Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. Well, damn. I think is does. I checked the vin and it dd not have the 'F' in the 5th letter, so I assumed that it had the Vanos 24 valve engine minus the knock sensor. Forgive my ignorance, I am trying to learn when i have the time. Just to be certain, I thought all '93's have a 34 valve Vanos engine. Am I mistaken? Either way, when the car is cold, it runs great, once it warms up, knocking and pinging. So, now I guess I have two questions :) >> I'm sorry. I should have mentioned it does NOT have a knock sensor. > Ah - sorry. Thought it had the 24 valve engine by then. |
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