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: Jun 2017
Posts: 44
Start up and engine problems

1987 944 NA. When attempting to start it acts like the battery is weak, but it's not(brand new battery showing 12.7). The engine will start but the car has no power when in gear. After running for a few minutes the oil light comes on, but the dip stick shows full to the top mark. , If I shut the car off and attempt to restart the engine won't fire and there's a strong gas smell. If I let it sit overnight it will fire up the next day, but with the same struggle to start.

The volt gauge on the dash shows about 11 volts. Replaced the alternator and no change.

Any thoughts out there?

Old 12-29-2018, 07:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Join Date: Jul 2004
Location: Upstate New York
Posts: 2,291
Check your battery connections, grounds, and the cables. The cables can deteriorate internally, and need to be checked for their ability to transfer a lot of electrons to power the starter.
__________________
Good luck, George Beuselinck
www.944ecology.com
Porsche Deconstructor (tm)
We buy 944s and sell 944 parts (845-379-1944)
We rebuild torque tubes and instrument clusters for 944/968/928
Old 12-30-2018, 04:57 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Jun 2017
Posts: 44
Quote:
Originally Posted by 944 Ecology View Post
Check your battery connections, grounds, and the cables. The cables can deteriorate internally, and need to be checked for their ability to transfer a lot of electrons to power the starter.
The cables are all good and so the other grounding points. I did just replace the power steering rack. The new one didn't have the ground connection on the spring cover plate. So, I used one of 2 the existing bolts for the ground. I removed some paint on the rack so connection would be metal to metal and cleaned the connection point on the engine cradle.
Old 12-30-2018, 06:24 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
Michaels951's Avatar
 
Join Date: Jan 2019
Posts: 38
Garage
Swap DME relay and let us know what happens!
Old 01-03-2019, 10:24 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Oct 2002
Location: Boulder, CO
Posts: 808
I disagree on the DME relay or further attempts to start/run.

1st thing check to see if the engine can turn over via a wrench on the crank bolt. Take the plugs out if you have to but it should be possible to turn it over with some struggle to get over the compression strokes (just go slow and let compression bleed off when you hit compression).

If it turns over freely-enough try starting with the coil disconnected to see if you are fighting spark advance, crossfiring, miswiring, etc.
__________________
1987 928S4
1992 968 cabrio
1994 968 cabrio - Supercharged
Old 01-03-2019, 10:33 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
Join Date: Jun 2017
Posts: 44
Quote:
Originally Posted by 944 Ecology View Post
Check your battery connections, grounds, and the cables. The cables can deteriorate internally, and need to be checked for their ability to transfer a lot of electrons to power the starter.
All the connections look good, the ground strap from the battery to the engine has a few cracks in the black plastic, the internal green wire looks good.
Old 01-11-2019, 03:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Politically Incorrect
 
onZedge's Avatar
 
Join Date: Aug 2005
Location: Hoover, Alabama
Posts: 1,363
Can you post a picture of the "internal green wire"?
__________________
Edek
'87 924S
'91 535i
Old 01-11-2019, 05:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
jhowell371's Avatar
 
Join Date: Sep 2010
Location: Western Maryland
Posts: 494
Garage
That wire isn't supposed to be green. The copper core is corroded.
__________________
Red 84 w/25,xxx miles
Stone Gray 89 S2 w/90,xxx miles
Old 01-11-2019, 05:50 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
Join Date: Feb 2003
Location: SF East Bay
Posts: 1,854
Yeah, corroded wire will not conduct electricity because electrons actually travel on surface of wires. Hence multiple fine strands to increase surface area. If surface is corroded, this limits flow. Not to mention causing internal breaks along way. Measure resistance of wire end-to-end.

Old 01-11-2019, 09:19 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
Join Date: Jun 2017
Posts: 44
Quote:
Originally Posted by DannoXYZ View Post
Yeah, corroded wire will not conduct electricity because electrons actually travel on surface of wires. Hence multiple fine strands to increase surface area. If surface is corroded, this limits flow. Not to mention causing internal breaks along way. Measure resistance of wire end-to-end.

The wire is correded. Picture attached I will replace and update

Old 01-12-2019, 08:11 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 02:51 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2020 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.