Diagnosing an intermittent D-Jet problem..., Hesitation under load at 2800 RPM but only when cold... |
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Diagnosing an intermittent D-Jet problem..., Hesitation under load at 2800 RPM but only when cold... |
MikeInMunich |
Oct 10 2016, 02:46 AM
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#1
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Member Group: Members Posts: 392 Joined: 19-November 13 From: Munich, Germany Member No.: 16,674 Region Association: None |
Hi again from Munich!
Here are the details. But please see update from Feb. 5th below! I have a D-Jetronic intake. Under load and at about 2800 RPM Im experiencing an intermittent hesitation. Yesterday my son and I took the car out for a drive from Munich, towards Innsbruck and back and we ran into a bit of rain coming along the Aachensee (lake), and this hesitation got worse. Then I remembered the only other time I've had this car out with 100% humidity and that it wasn't running well on that day either, so this is apparently a clue. So what can this be? And why does it happen at all, even when it's not raining, albeit not as noticeably? Is there a cure? Experts / senior gurus out there, thank you for your time and sharing your knowledge and experience, in advance! With kind regards, Mike in Munich (IMG:style_emoticons/default/smilie_flagge6.gif) |
MikeInMunich |
Apr 2 2017, 04:08 AM
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#2
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Member Group: Members Posts: 392 Joined: 19-November 13 From: Munich, Germany Member No.: 16,674 Region Association: None |
Update!! Interesting "insight"?
Hi Brad, D.D. Mr. Bowlsby and Co. Thanks for reading and offering feedback! I have an electronic distributor, no points. I have done many or most of the things that Brad suggested, though not all yet. Since my last update I discovered that the guy who rebuilt the engine and did other work on the car for me before it was sent over (back!) to Germany had forgotten(!!!) to attach a proper ground from the engine to the body! The usual strap at the back of the transmission wasn't there, nor any other. Yes, I should have noticed this much sooner. It WAS causing problems, but getting two new proper grounds installed did NOT alleviate the problem that this thread is about. BUT alas! Here is the new and I believe interesting piece of information! Temperatures over here in Munich have been quite warm this March (2017) and the hesitation we're talking about is just EVER so slightly, if at all, happening AND when I drove home late at night the other day after a radical temperature drop to under 40 degrees F, the symptom returned! It was not really bad, but absolutely far more noticeable as with the warmer temperatures. So, does this tell us anything somewhat definitively? Thanks! (IMG:style_emoticons/default/beerchug.gif) M.i.M. |
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