8.7 miles and then it dies, TWICE |
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8.7 miles and then it dies, TWICE |
HeloMech |
Jul 24 2006, 05:44 PM
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#1
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Go Ahead, Get Pistoph! Group: Members Posts: 691 Joined: 31-August 05 From: Roy, WA Member No.: 4,718 Region Association: Southern California |
Ok, what's the joke? There's some type of thing that let's my car know that it's about 50-100 feet from it's destination and that's when it loads up, misfires and dies.... RIGHT? (IMG:style_emoticons/default/blink.gif)
Again, we push started the car. Started right up. Anything above 2800'ish rpms and it would sound like it was misfiring. I was able to drive it home, running 4th gear.. 2000-2600 rpms. About the last block or two, a couple of sputters. Last 100-200 feet and it stumbles quite a bit. Then, it's almost like it runs out of gas. Just for giggles, I hit the starter (since the starter was dead at work) and the starter kicked on twice.. then it was dead again. Either way, car didn't start. The guy in the other 914 behind me said that just where I said it was acting up, he said it sorta puffed some smoke and then he smelled gas. I've tried to put as much info out as possible. Hm, also, after it seemed like it was loading up, I'd put it in neutral and rev it a bit, trying to clear it out. That didn't really seem to have any effect... at the higher rpm's it would just sound like it was misfiring again. so... anyone have suggestions with this info? Joe? Thanks, Robert |
r_towle |
Jul 24 2006, 05:52 PM
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#2
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
loose ground wire to battery..
Rich |
HeloMech |
Jul 24 2006, 05:55 PM
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#3
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Go Ahead, Get Pistoph! Group: Members Posts: 691 Joined: 31-August 05 From: Roy, WA Member No.: 4,718 Region Association: Southern California |
loose ground wire to battery.. Rich Tight at the post and on the car. (from battery to car) new battery and cleaned connections. (IMG:style_emoticons/default/sad.gif) |
lapuwali |
Jul 24 2006, 05:57 PM
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#4
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
I'm guessing you have more than one problem here. The sputtering and dying may be a plugged fuel tank vent. Carbs or FI?
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HeloMech |
Jul 24 2006, 06:00 PM
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#5
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Go Ahead, Get Pistoph! Group: Members Posts: 691 Joined: 31-August 05 From: Roy, WA Member No.: 4,718 Region Association: Southern California |
I'm guessing you have more than one problem here. The sputtering and dying may be a plugged fuel tank vent. Carbs or FI? It's the stock DJet FI system. I know the starter is seperate from the other fuel type issue... where are the return lines and vents located? I should be able to blow them out with low PSI air, right? Also, if it's venting... that was a question I posted elsewhere earlier... just wondering how long that it would typically take to suffer from a vapor lock type situation? The fuel pump is still mounted in the right rear. |
Brando |
Jul 24 2006, 07:56 PM
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#6
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BUY MY SPARE KIDNEY!!! Group: Members Posts: 3,935 Joined: 29-August 04 From: Santa Ana, CA Member No.: 2,648 Region Association: Southern California |
Start with the basics...
1. Good grounds/clean connections 2. Fuel 3. Spark 4. ... |
mihai914 |
Jul 24 2006, 08:44 PM
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#7
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Senior Member Group: Members Posts: 800 Joined: 2-March 05 From: Montreal, QC Member No.: 3,697 Region Association: None |
Carry a multimeter with you and next time the car acts up test the resistance of the CHT (head temp sensor), if it's infinity then that may be your culprit.
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Kersey |
Jul 24 2006, 09:17 PM
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#8
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Newbie Group: Members Posts: 10 Joined: 30-December 05 From: Denver,CO Member No.: 5,339 |
I have seen a similar problem occur on boats. In those cases a screen on the pick up tube in the fuel tank would slowly get shut off by pieces of stuff that had gotten in the tank over the years, it would take a given period of time before the engine would run bad and shut down. After sitting for a while the vacuum would let off the particles would fall away and the engines would run again. You could run these boats at the dock all day, the problem only happened when they were moving. If none of the other things straighten it out you might look at the tank.
Paul |
KaptKaos |
Jul 24 2006, 09:21 PM
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#9
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Family Group: Members Posts: 4,009 Joined: 23-April 03 From: Near Wausau Member No.: 607 Region Association: Upper MidWest |
8.7 miles and then it dies, TWICE Wait a sec.... you have a working odometer? (IMG:style_emoticons/default/biggrin.gif) I had similar issues with my trigger points, but it wasn't this bad. |
HeloMech |
Jul 24 2006, 10:15 PM
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#10
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Go Ahead, Get Pistoph! Group: Members Posts: 691 Joined: 31-August 05 From: Roy, WA Member No.: 4,718 Region Association: Southern California |
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John |
Jul 24 2006, 10:20 PM
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#11
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member? what's a member? Group: Members Posts: 3,393 Joined: 30-January 04 From: Evansville, IN (SIRPCA) Member No.: 1,615 Region Association: None |
Just for grins, you should swap out your ignition coil. I had one that would break up badly above a certain RPM and went nuts trying to diagnose it. I temporarily tried a 911 coil and all problems went away. I then bought one the right size.
It could be crap in your gas tank as others have suggested, but I like to try the easy stuff first. |
GWN7 |
Jul 24 2006, 11:23 PM
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#12
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King of Road Trips Group: Members Posts: 6,280 Joined: 31-December 02 From: Winnipeg, MB, Canada Member No.: 56 Region Association: Northstar Region |
Check all the stuff mentioned and only drive it 8 miles till you figure it out.... (IMG:style_emoticons/default/wink.gif)
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914 dror |
Jul 25 2006, 02:03 AM
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#13
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Member Group: Members Posts: 67 Joined: 24-July 06 From: ISRAEL Member No.: 6,495 |
Wait a sec.... you have a working odometer? Nope! I have another car and a bike and have worked at the same place for 3 years so I know how far it is... lol I had the same thing with my `72 vw bus I ended up with pulling the tank out and (it had about 250 cc of rust! in it) had to do a sealling job on it - used por-15 tank sealler, had no problems sins (2.5 years). |
Rockaria |
Jul 25 2006, 07:53 AM
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#14
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ZippidyDoDah... Group: Members Posts: 817 Joined: 2-May 03 From: Southwest, USA Member No.: 645 Region Association: None |
...The guy in the other 914 behind me said that just where I said it was acting up, he said it sorta puffed some smoke and then he smelled gas. ... If the guy behind him stated he smelled gas, would that mean the tank line is clogged? or a too rich situation? Could a clogged line make it run rich? The starter problem I have had on every 914 I have owned, Lucky me! I now have two backup systems; an added starter relay, and a remote start button. I realize its a hack fix, but it has worked great for years. My car also did exactly what yours is doing once it got warm. My CHT sensor at the #3 plug wire was not solid and when the car got hot it would easily give and send a "Need more gas and lots of it" signal to the brain. totaly making the car bog down and smell of gas. But mine is an L-Jet, a different beast than the D-Jet. I would get black smoke before it died. On the D-jet there is a Manifold pressure sensor. I have never dealt with one so maybe someone can chime in to problem that would associate with that part once the car is warm. if it does ever have trouble in warm cold situations. Just my random thoughts on this, |
flesburg |
Jul 25 2006, 08:04 PM
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#15
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Senior Member Group: Members Posts: 506 Joined: 22-November 04 From: Pontiac, IL Member No.: 3,162 |
Have you removed and reinstalled your engine recently?
If so, and this problem just started after the reinstall, take the cap off of the gas tank and drive it. I had a dying problem once, and the cause was two "reversed" hoses from the engine to the gas tank, and I was sucking a vacuum at the tank, and the fuel pump cannot overcome it, and the engine would stall. It would take 5 or 10 miles of driving to stall the engine. Fix is to reinstall the two hoses that come to the engine from the tank's charcol filter, one blows air into the tank and the other uses vacuum to draw fumes into the intake (proper fix) or just leave them disconnected at the fuel tank end (improper fix but will work forever. |
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