Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 924/944/968 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Jan 2007
Location: San Antonio
Posts: 461
Please read and help if you can,....engine problems

Ok, on moday night i was driving my 944, i only got about 3 miles and the engine just died, my rpm's went flat but i had power to everything else. the engine just turned off.

After trying everything for about 30 minutes i had to be towed home. I went outside tuesday and looked a few things over and didnt see anything wrong but the car still wouldnt start.

So today i pulled out a few tools and took one spark plug out and turned the car over to see if there was spark, i didnt see a spark but the car started and ran. I put the plug back in and drove 2 or 3 miles and it runs fine.

Can anyone tell me maybe whats going on, im buying new spark plugs today and maybe a coil wire, but im 16 so money is limited till i get a job. any help on this greatly appreciated, thanks josh

__________________
1987 944 n/a
Old 06-20-2007, 01:40 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Tidybuoy's Avatar
 
Join Date: Jun 2003
Location: Fresno, CA
Posts: 6,560
Garage
It definately sounds like an ignition problem and by you removing a plug, you must have wiggled some wires around. Run the engine at night and see if you can see any sparking coming out of the plug wires. When they get worn out, you can sometimes see the current pulsing thru (when it's dark out). You may also want to check the conditi0on of the cap and rotor. Also, look for any loose wiring to any sensors as you must have moved something causing the car to startup.

Vern
__________________
Vern
'06 Cayman S - Arctic Silver, "R" Springs & Struts, Spyder 19" Wheels, 82mm Plenum & Throttle Body.
'74 911 Coupe - Silber Metalic, PMO ITB, Electromotive Mgt
'16 BMW R Nine T (the fun one) & '17 BMW G310R
Old 06-20-2007, 01:45 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Greasy Member
 
many944s's Avatar
 
Join Date: Mar 2006
Location: Indiana
Posts: 1,457
Did you happen to check your DME relay when the car died? Alot of 944 drivers carry a spare, as after time the solder joints can wear out and leave you standed with the same kind of problems you are describing. Note: the DME relay is also often called the fuel pump relay.

Good luck,
Nick
__________________
Owner: Bennington Motorsports www.benms.com
Sponsor for Midwest Region 944-SPEC racing series
-When was your timing belt changed or tensioned??
-Yes, I'm the crazy man that will loan out my 9201. Just PM me, I will add you to the list and get it out ASAP.
Old 06-20-2007, 01:47 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Feelin' Solexy
 
Tishabet's Avatar
 
Join Date: Oct 2003
Location: Seattle
Posts: 3,340
Re: Please read and help if you can,....engine problems

Quote:
Originally posted by jkrustchinsky


After trying everything for about 30 minutes i had to be towed home. I went outside tuesday and looked a few things over and didnt see anything wrong but the car still wouldnt start.
So when you say it wouldn't start, am I correct to say that the engine was cranking etc but it just wasn't "catching?"

Quote:
Originally posted by jkrustchinsky
So today i pulled out a few tools and took one spark plug out and turned the car over to see if there was spark, i didnt see a spark but the car started and ran. I put the plug back in and drove 2 or 3 miles and it runs fine.
OK, whatever was wrong has temporarily fixed itself and seemingly the only thing that has changed is time and you fooling with the spark plug. My advice: Take the car somewhere really dark and start it up with the hood open. Look for arcing from the plug wires or the coil wire... if you see anything your wires are shot and need to be replaced (around $100). You can jiggle the wires a bit to see if you get sparking, but be careful around the running/electrically hot engine.
__________________
Grant
1974 Vespa Rally 200, 1974 Vespa Primavera 125, 1963 Solex 2200, 1938 Buick Special, 2008 Mini Cooper S, 2010 Mazda CX-9, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar - in the stable
1989 Porsche 944, 1973 VW Beetle - gone but not forgotten
Old 06-20-2007, 01:50 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Feelin' Solexy
 
Tishabet's Avatar
 
Join Date: Oct 2003
Location: Seattle
Posts: 3,340
Dang, Tidybuoy beat me to it! Also Many944s has a good suggestion...
__________________
Grant
1974 Vespa Rally 200, 1974 Vespa Primavera 125, 1963 Solex 2200, 1938 Buick Special, 2008 Mini Cooper S, 2010 Mazda CX-9, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar - in the stable
1989 Porsche 944, 1973 VW Beetle - gone but not forgotten
Old 06-20-2007, 01:51 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Certified Rennwerker
 
924Sman's Avatar
 
Join Date: Oct 2002
Location: Kansas
Posts: 1,902
Send a message via MSN to 924Sman
I carry a new relay as a spare just for the above reason. They seem to fail at the worst time too.
Dal
__________________
PCA " I've been everywhere, done everything......just can't remember any of it!"
Old 06-20-2007, 01:54 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered User
 
Join Date: Mar 2002
Location: Jacksonville, FL
Posts: 591
Cam reference sensor? DME would be 2nd guess.
__________________
No Colonel Sanders, you're wrong, mamma's right
Old 06-20-2007, 01:57 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
Join Date: Jan 2007
Location: San Antonio
Posts: 461
is there a way to check the dme relay? yes the engine was cranking but would not start, i will drive the car tonight and check the spark,
__________________
1987 944 n/a
Old 06-20-2007, 02:28 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
Join Date: Jan 2007
Location: San Antonio
Posts: 461
also i have another question, this time its aobut my oil pressure, when driving the car around my oil pressure stays at 5 all the time somtime just a little lower somtmes a little higher, is this normal or not. thanks josh
__________________
1987 944 n/a
Old 06-20-2007, 02:30 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
Tidybuoy's Avatar
 
Join Date: Jun 2003
Location: Fresno, CA
Posts: 6,560
Garage
I think that is normal. My car runs at 5 but occasionally will dip to 3 when idling.

Vern
__________________
Vern
'06 Cayman S - Arctic Silver, "R" Springs & Struts, Spyder 19" Wheels, 82mm Plenum & Throttle Body.
'74 911 Coupe - Silber Metalic, PMO ITB, Electromotive Mgt
'16 BMW R Nine T (the fun one) & '17 BMW G310R
Old 06-20-2007, 02:46 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Feelin' Solexy
 
Tishabet's Avatar
 
Join Date: Oct 2003
Location: Seattle
Posts: 3,340
Quote:
Originally posted by jkrustchinsky
is there a way to check the dme relay? yes the engine was cranking but would not start, i will drive the car tonight and check the spark,
If the DME is flaky, you can sometimes get it to work by lightly tapping with the handle of a screwdriver... it's just a relay after all.
Or if you've got a no-start condition and suspect the DME, you can jumper the connections (don't drive the car around like this...diagnostic only). Check out Clarksgarage.com for a good explanation of how to jumper.
__________________
Grant
1974 Vespa Rally 200, 1974 Vespa Primavera 125, 1963 Solex 2200, 1938 Buick Special, 2008 Mini Cooper S, 2010 Mazda CX-9, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar - in the stable
1989 Porsche 944, 1973 VW Beetle - gone but not forgotten
Old 06-20-2007, 03:10 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Registered User
 
Join Date: Jan 2007
Location: San Antonio
Posts: 461
ive been driving the car all around and it hasnt died, would you say it is safe to drive until i get a new dme? thanks josh
__________________
1987 944 n/a
Old 06-20-2007, 03:34 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
Feelin' Solexy
 
Tishabet's Avatar
 
Join Date: Oct 2003
Location: Seattle
Posts: 3,340
Quote:
Originally posted by jkrustchinsky
ive been driving the car all around and it hasnt died, would you say it is safe to drive until i get a new dme? thanks josh
Well, if it's the DME that caused your original problem it's going to keep doing it. Is it "safe?" Well, no damage will take place in your engine or anything but you will definitely be stranded. If you look around you can find the DME for not too much money, and as the other guys pointed out it's good to carry a spare. I do.
__________________
Grant
1974 Vespa Rally 200, 1974 Vespa Primavera 125, 1963 Solex 2200, 1938 Buick Special, 2008 Mini Cooper S, 2010 Mazda CX-9, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar - in the stable
1989 Porsche 944, 1973 VW Beetle - gone but not forgotten
Old 06-20-2007, 03:38 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
Registered User
 
Join Date: Jan 2007
Location: San Antonio
Posts: 461
im purchasing a new relay, ill attempt to drive it around, i it dies again then ill know its the relay, and ill just park it till the new one comes or ill try to fix this one, im pretty good at soldering. thanks for everyones help, josh

__________________
1987 944 n/a
Old 06-20-2007, 03:41 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 07:18 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.