| Author |
Message |
Barney Guzzo (Trinacria)
Member
Username: Trinacria
Post Number: 506
Registered: 8-2002
| | Posted on Friday, October 10, 2003 - 3:13 pm: | |
Fuel pump fuse! Could be! |
Sam Germana (Sjmst)
Junior Member
Username: Sjmst
Post Number: 124
Registered: 7-2003
| | Posted on Friday, October 10, 2003 - 11:22 am: | |
I had the same thing in my 82 Mondial, which has the same engine. It was a fuse, but I'm not sure which one. The issue was that once it cooled down, it started fine. |
Mark Rolf (Markrolf)
New member
Username: Markrolf
Post Number: 23
Registered: 7-2003
| | Posted on Friday, October 10, 2003 - 10:33 am: | |
Thanks Barney,
It's had a full �60k restoration and was actually a prize in a UK TV show - lucky or what !! |
Barney Guzzo (Trinacria)
Member
Username: Trinacria
Post Number: 503
Registered: 8-2002
| | Posted on Friday, October 10, 2003 - 8:43 am: | |
Mark
Beautiful car in your profile! |
DGS (Dgs)
Member
Username: Dgs
Post Number: 386
Registered: 5-2003
| | Posted on Friday, October 10, 2003 - 4:36 am: | |
Mark, your issue sounds like it may relate to the thermo-time switch, which connects to the control pressure regulator (a.k.a. the "warm-up regulator").
gary's issue is a bit stranger, presuming the car doesn't die when it's warm. There's no spark when trying to start warm, but the spark doens't go away while running warm.
That sounds like a sticking relay, but I can't think of one, offhand, that would relate. |
Mark Rolf (Markrolf)
New member
Username: Markrolf
Post Number: 22
Registered: 7-2003
| | Posted on Friday, October 10, 2003 - 2:38 am: | |
Gary,
I've got a 1981 308 GTBi which seems to have the same problem. I've put a new starter on it, and although it turns much better, it still hasn't really sorted it.
A friend of mine actually nailed it down (we think) to the warm up regulator, which has 2 blue bosch plugs going into it. If I swap the plugs over, the car will start, otherwise, like yourself I've got to wait ages for it to 'cool down' Worth a try anyway.. |
Peter Cyr (Pete04222)
Junior Member
Username: Pete04222
Post Number: 86
Registered: 6-2002
| | Posted on Thursday, October 09, 2003 - 10:55 pm: | |
I had a similar problem with my Jeep. Only mine would sometimes die and not restart. Let it sit 10 minutes and its fine. I can't tell you how much time and money I spent troubleshooting it. Replaced the coil, module, pickup coil, etc ('course it is fairly cheap to do that on a Jeep). The hard part was that while I was troubleshooting it, it would fix itself. Very frustrating.
Well, I finally found that it was a bad connector on the distributor primary wiring circuit. It was just good enough when cold to make the engine run, but when it got hot the resistance increased enough to prevent proper voltage from reaching the coil and generating a spark. So about $100 and 6 months later I cut off the connector and replaced it with $0.50 worth of spade terminals.
|
gary308 (82_308gtsi)
New member
Username: 82_308gtsi
Post Number: 3
Registered: 10-2003
| | Posted on Thursday, October 09, 2003 - 9:10 pm: | |
Tom,
Thanks for your's response. I did what you suggested. Fuel pressure was able to maintain for hours unchanged after engine shut off. The problem is no sparks from spark plugs. First, I sprayed fuel from air flow sensor plate to assist engine start if fuel was the issue but no lock there. That was when I went to check is there any spark in the spark plug. I checked two, none has sparks. What's next? |
Tom Bakowsky (Tbakowsky)
Member
Username: Tbakowsky
Post Number: 703
Registered: 9-2002
| | Posted on Thursday, October 09, 2003 - 7:26 pm: | |
Have you put a fuel pressure gauge on your car? It's sound like the fuel system is losing it's prime. The fuel system must maintain fuel pressure after shut-down to avoid vapour lock. If the fuel is allowed to "empty" out of the lines, starting the car when it is hot will be nearly impossiable. 2 things keep fuel pressure in the lines after shut down. One in the fuel pump(it has a check vavle built in for this reason),the other is the fuel accumulator(large sort of ant without legs looking thing beside the fuel pump. I would put pressure gauges on the car and let it run until it's gets hot. Then shut the car off and watch what the fuel pressure does. If if bleeds down to anything under 20psi after shutdown within 30 minutes,that is your problem. |
Barney Guzzo (Trinacria)
Member
Username: Trinacria
Post Number: 501
Registered: 8-2002
| | Posted on Thursday, October 09, 2003 - 7:18 pm: | |
The modules cost about $500 each but it is not likely them IMO. Check the connectors going to them and make sure they are tight. |
Barney Guzzo (Trinacria)
Member
Username: Trinacria
Post Number: 500
Registered: 8-2002
| | Posted on Thursday, October 09, 2003 - 7:15 pm: | |
The ignition modules are in the trunk, under the carpet on the drivers side, upside down. Can be the coils but more likely the flywheel sensors or the wiring at the coils. My 2c. |
gary308 (82_308gtsi)
New member
Username: 82_308gtsi
Post Number: 2
Registered: 10-2003
| | Posted on Thursday, October 09, 2003 - 7:04 pm: | |
Gentlemen,need help again.
Never a problem starting the car when engine is cold. When engine at normal driving temp, I can't start the engine right away, However, if I waited for 30min or so, I was able to start engine again.
Initially, fuel injection system was the prime suspect. I've checked fuel pressure,control pressure from warm-up regulator,..etc,all functioned according to the book but the problem still exist. During the moment, I have trouble starting,I pulled one of the spark plug out and found out it has no spark. After 30min or so, I started the engine. At this time pulled spark plug was firing normally. Now, what could cause this intermittent problem?? ignition modules, coil or something. By the way, where are the two ignition modules located and how much each cost???
Thanks for the response. |