 Name the root cause:, engine cut out |
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| porsche735 |
  Apr 10 2003, 04:36 PM
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#1
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Member  Group: Members Posts: 189 Joined: 10-January 03 From: Los Altos, CA Member No.: 127  |
We have had an issue with our car since we bought it 7 years ago. We noticed it a few times right after we bought it (actually on the way home from the purchase) and it has progressively gotten worse. We have replaced many things over those years to no avail. The problem would go away for a while and then come back. It was basically a "bucking" or cutout that we would get mostly in left hand turns and more so at high RPMs and when it was hot. Going straight it would fix itself in a while and if you made a right turn it would cure immediately. If you shifted to a higher gear, it would go away more quickly. Bitch of a problem.
We have now cured the problem. Which root cause do you think it was? I'll give the answer after this weekend. Chris 1973 914 2.0L BP |
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| SirAndy |
Apr 10 2003, 04:49 PM
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#2
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Resident German Group: Admin Posts: 41,602 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
i voted for "Pinched hose". the left turn/right turn very much sounds like lack of fuel, cause by a pinched hose. tank wasn't tied down correctly? moved in corners a bit to cut off fuel?
can't wait to hear the answer (IMG:style_emoticons/default/smash.gif) |
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| r_towle |
Apr 10 2003, 05:10 PM
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#3
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Custom Member Group: Members Posts: 24,560 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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Bad Ground, when any German car acts funny, look for a bad ground First.
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| Bruce Allert |
Apr 10 2003, 05:26 PM
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#4
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Hellions asleep Group: Members Posts: 3,289 Joined: 19-March 03 From: Eagle Creek, Orygun Member No.: 441 Region Association: Pacific Northwest |
I had a similar problem and found the dizzy to be a bit wobbley. Replaced points with Pertronics & problem went away. I vote dizzy.
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| airsix |
Apr 10 2003, 05:35 PM
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#5
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I have bees in my epiglotis Group: Members Posts: 2,196 Joined: 7-February 03 From: Kennewick Man (E. WA State) Member No.: 266 |
QUOTE Ich habe einen Schnauzer in meiner Hose! I can't stop laughing! (IMG:style_emoticons/default/laugh.gif) Hey, get that dog away from the phone chord! Why, I'm gonna throttle that sutp[id09490-49(*&^&*()())_ ERROR NO TERRIER |
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| r_towle |
Apr 10 2003, 05:36 PM
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#6
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Custom Member Group: Members Posts: 24,560 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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I had a different problem, but it came down to the 30 year old grease in the distributor needed to be cleaned out and re-greased....It was under the plate with the point on it...but it kept the car running on several different variations of cylinders....
Of course I replaced everything first, then finally spent the five cents on new grease and it ran perfect... |
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| Gint |
Apr 10 2003, 06:30 PM
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#7
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Mike Ginter Group: Admin Posts: 16,066 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains  |
I voted for the main wiring harness. Pure WAG. Wire grounding out with a tad of flex, etc...
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| Jeffs9146 |
Apr 14 2003, 11:08 AM
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#8
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
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| porsche735 |
Apr 14 2003, 03:23 PM
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#9
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Member Group: Members Posts: 189 Joined: 10-January 03 From: Los Altos, CA Member No.: 127 |
Well, we thought we had it licked as we removed teh distributor and found all sorts of wobble. This answered the high rpm issue, the trigger points misfiring and the turn sensitivity. Teh guy rebuilt it and said it was way off and it should solve our problems. Well, they are still there....sorry no root cause yet...thanks for playing.
http://www.914world.com/bbs2/index.php?act...t=0&#entry15293 Chris |
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| porsche735 |
May 5 2003, 12:36 PM
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#10
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Member Group: Members Posts: 189 Joined: 10-January 03 From: Los Altos, CA Member No.: 127 |
O.K., so the winner is.........
Head Temp Sensor Balast Resistor We had a balast resistor (270 ohm) that would intermittently open circuit. I guess this caused the injectors to run really rich and flood the car. I guess at higher RPM the injector pulses would have long enough duration to flood it. Chris |
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| jonwatts |
May 5 2003, 12:45 PM
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#11
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no rules, just wrong Group: Benefactors Posts: 2,321 Joined: 13-January 03 From: San Jose, CA Member No.: 141 |
Glad it finally showed itself and got taken care of. Too bad your dad won't get his wish (seeing the car crushed up into a cube for all his frustration).
How about the trailing arm bushings, any better? |
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| porsche735 |
May 5 2003, 12:48 PM
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#12
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Member Group: Members Posts: 189 Joined: 10-January 03 From: Los Altos, CA Member No.: 127 |
Yep. Trailing arm bushings are fine. We took 1st (me) and 2nd (dad) at Laguna Seca this weekend. So, things must be OK....
Chris |
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