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Maleficio's Avatar
 
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I'm officially one of "those guys".

My 82 will not start.

I knew it was bound to happen. Glad it's finally warming up outside, just wish'd it wasn't parked at work.

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1982 Porsche 928, Auto, 4.5
http://i72.photobucket.com/albums/i166/hethaerto/928Mist2.jpg?t=1305333945
Old 02-23-2011, 07:17 PM
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My wife's 99 Lincoln was finally cured of a nagging no start problem, the hard way, throwing money at it. We had it flatbedded twice to the mechanic so he could have it in the non start condition, and gave it to them for most of a week a couple times, and they replaced all sorts of things that might be it before hitting on the control circuit for the fuel pump. Apparently this sometimes fail when cold, sheesh. Give me a nice simple 928 no start any day.
Old 02-24-2011, 01:15 AM
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928: Serial Enabler
 
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Must be the oil?
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84,85,86 928 cars
Old 02-24-2011, 02:32 AM
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Quote:
Originally Posted by Danglerb View Post
My wife's 99 Lincoln was finally cured of a nagging no start problem, the hard way, throwing money at it. We had it flatbedded twice to the mechanic so he could have it in the non start condition, and gave it to them for most of a week a couple times, and they replaced all sorts of things that might be it before hitting on the control circuit for the fuel pump. Apparently this sometimes fail when cold, sheesh. Give me a nice simple 928 no start any day.
It must be going around as they say! My Ford Expedition also had a starting problem and poor mileage. I heard a funny exhaust noise, just a little kind of popping. Examined the exhaust, all looked fine. Then I happened to look way down by the fire wall where I thought the noise was coming from. It was the EGR pipe!! A fitting had actually rusted connecting it to the manifold. Of course it was a flared end so I had to buy a new pipe. The pipe was fine but was leaking at that fitting. Also, there were two small hoses going to a "box" on the manifold from that EGR pipe. These lines were not getting the feed they needed because of that leak and caused the gas mileage to drop.
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1986 928S
32 valve engine
All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires.
Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster
Old 02-24-2011, 04:56 AM
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Quote:
Originally Posted by Maleficio View Post
My 82 will not start.

I knew it was bound to happen. Glad it's finally warming up outside, just wish'd it wasn't parked at work.
Is it getting gas? Try replacing the Fuel relay with the Horn relay if your horn works.
Is it FLOODED? I think they flood if you look at it the wrong way!
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1986 928S
32 valve engine
All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires.
Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster
Old 02-24-2011, 05:02 AM
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Mal,

Bummer...you have read many of the posts about the starting problems...bring your test meter and some relay jumpers...

Let us know what you find??
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'79 928, 85k Opal Metallic
'99 BMW 540i, 97k Titanium
'72 BMW 3.0 csi, 85k km (euro Deutschland '82) Taiga
Old 02-24-2011, 09:08 AM
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Quote:
Originally Posted by harborman View Post
Is it getting gas? Try replacing the Fuel relay with the Horn relay if your horn works.
Is it FLOODED? I think they flood if you look at it the wrong way!
Will do. Thanks for the great advice.
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1982 Porsche 928, Auto, 4.5
http://i72.photobucket.com/albums/i166/hethaerto/928Mist2.jpg?t=1305333945
Old 02-24-2011, 12:59 PM
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Quote:
Originally Posted by JhwShark View Post
Mal,

Bummer...you have read many of the posts about the starting problems...bring your test meter and some relay jumpers...

Let us know what you find??

It lights off, tries to idle three or four explosions, then stalls. It does the exact same thing over and over, perfectly the same every time.
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1982 Porsche 928, Auto, 4.5
http://i72.photobucket.com/albums/i166/hethaerto/928Mist2.jpg?t=1305333945
Old 02-24-2011, 01:00 PM
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Quote:
Originally Posted by Maleficio View Post
It lights off, tries to idle three or four explosions, then stalls. It does the exact same thing over and over, perfectly the same every time.
Ok, I just pulled my hair getting mine to fire up. I am quite sure mine just plain flooded and flooded bad. You need to keep the peddle to the FLOOR and let it crank.

First, pull a spark plug and see if it's WET, that will indicate gas.
Next, if you have a spare plug, pull one wire, put the plug in, ground it and check for spark.

Your situation may be different from your explanation. If you can jumper the fuel relay (XX), I think) contacts it's the two that are horizontal in the socket I think like this orientation (I --) the vertical ones are for the relay coil, do NOT jumper those!! The fuel pump should run immediately! Now I have a 86S OK.

You can also check the LH and EZH relays for an 86 model.

Other things, fuel pressure, spark on both distributors. Fuel filter, etc.

I am NEW and others here know a lot more OK.

If you turn the ignition on but not starting just in the RUN position do you hear any constant "clicking".?

Anyway this is a starting point. That's a Pun...........
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1986 928S
32 valve engine
All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires.
Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster
Old 02-24-2011, 01:39 PM
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928: Serial Enabler
 
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The thermo / time switch on the 82 is known to go bad an cause that type of behavior.
I've had to replace two of them, one on each 84 USA car.
If it fails, it causes a kind of flooding from the cold start injector.
We've posted a description of how it operates here on pelican a couple times.
You might try a search -- that should bring it to the surface.

Its located in the engine block, I think on the front passenger side, with electrode pointing toward the radiator, ie, an install direction toward the cockpit of the car.

Now, you know with these cars they are complex enough for there to be multiple possibilities.
But that switch is a known failure point that will give that behavior.

Neil also posted some information on that sensor / switch. There may be a way to disable the cold start injector and allow start.
Be aware that the wiring diagram is wrong in the workshop manual (electrode references are swapped). One of the posts recently had Neil showing the wiring diagram, followed by me showing the tech bulletin with the update.


The 86 has a pretty-much different setup. The euro 84/5/6 are pretty much the same as harborman's 86, though.
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84,85,86 928 cars

Last edited by Landseer; 02-24-2011 at 01:51 PM..
Old 02-24-2011, 01:47 PM
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Quote:
Originally Posted by harborman View Post
Ok, I just pulled my hair getting mine to fire up. I am quite sure mine just plain flooded and flooded bad. You need to keep the peddle to the FLOOR and let it crank.

First, pull a spark plug and see if it's WET, that will indicate gas.
Next, if you have a spare plug, pull one wire, put the plug in, ground it and check for spark.

Your situation may be different from your explanation. If you can jumper the fuel relay (XX), I think) contacts it's the two that are horizontal in the socket I think like this orientation (I --) the vertical ones are for the relay coil, do NOT jumper those!! The fuel pump should run immediately! Now I have a 86S OK.

You can also check the LH and EZH relays for an 86 model.

Other things, fuel pressure, spark on both distributors. Fuel filter, etc.

I am NEW and others here know a lot more OK.

If you turn the ignition on but not starting just in the RUN position do you hear any constant "clicking".?

Anyway this is a starting point. That's a Pun...........

Thanks.
__________________
1982 Porsche 928, Auto, 4.5
http://i72.photobucket.com/albums/i166/hethaerto/928Mist2.jpg?t=1305333945
Old 02-24-2011, 02:02 PM
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Quote:
Originally Posted by Landseer View Post
The thermo / time switch on the 82 is known to go bad an cause that type of behavior.
I've had to replace two of them, one on each 84 USA car.
If it fails, it causes a kind of flooding from the cold start injector.
We've posted a description of how it operates here on pelican a couple times.
You might try a search -- that should bring it to the surface.

Its located in the engine block, I think on the front passenger side, with electrode pointing toward the radiator, ie, an install direction toward the cockpit of the car.

Now, you know with these cars they are complex enough for there to be multiple possibilities.
But that switch is a known failure point that will give that behavior.

Neil also posted some information on that sensor / switch. There may be a way to disable the cold start injector and allow start.
Be aware that the wiring diagram is wrong in the workshop manual (electrode references are swapped). One of the posts recently had Neil showing the wiring diagram, followed by me showing the tech bulletin with the update.


The 86 has a pretty-much different setup. The euro 84/5/6 are pretty much the same as harborman's 86, though.
Thanks, Chris. That is excellent information.
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1982 Porsche 928, Auto, 4.5
http://i72.photobucket.com/albums/i166/hethaerto/928Mist2.jpg?t=1305333945
Old 02-24-2011, 02:04 PM
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With what I've read on Pelican and your symptoms just posted...Chris has the suggestion that should be checked first. You seem to have spark and fuel...no sustain
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'79 928, 85k Opal Metallic
'99 BMW 540i, 97k Titanium
'72 BMW 3.0 csi, 85k km (euro Deutschland '82) Taiga
Old 02-24-2011, 02:36 PM
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By all means do what Chris suggested first!
Old 02-24-2011, 02:59 PM
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I can hear the main pump running, but don't know if it's making enough pressure.
Old 02-24-2011, 05:43 PM
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928: Serial Enabler
 
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If its running and has gas, its fine.

One thing that might work:

Remove the air cleaner top & filter.
Insert a piece of heater hose to wedge open the springloaded door on the AFM.
Try starting. That may get enough air into the mixture to get the cylinders below the upper explosive limit of gasoline concentration and allow start.

I think its thermo-time, a huge vac leak, or slipped timing. If its not out of gas.
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84,85,86 928 cars
Old 02-24-2011, 07:15 PM
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Pull one plug and see if it's wet. You might have to pull all of them and let it "air out".
Anyway you can check the condition of the plugs. Let us know the results.
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1986 928S
32 valve engine
All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires.
Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster
Old 02-25-2011, 04:48 AM
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Quote:
Remove the air cleaner top & filter.
Insert a piece of heater hose to wedge open the springloaded door on the AFM.
Try starting. That may get enough air into the mixture to get the cylinders below the upper explosive limit of gasoline concentration and allow start.

I think its thermo-time, a huge vac leak, or slipped timing. If its not out of gas.
I'd do that

What did you play with last?
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Old 02-26-2011, 11:28 PM
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Quote:
Originally Posted by Tempermental View Post
I'd do that

What did you play with last?

I haven't messed with much this entire winter.
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1982 Porsche 928, Auto, 4.5
http://i72.photobucket.com/albums/i166/hethaerto/928Mist2.jpg?t=1305333945
Old 02-27-2011, 07:09 AM
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Quote:
Originally Posted by Maleficio View Post
I haven't messed with much this entire winter.
Have you checked any of the things mentioned yet? Let us know how you are progressing on it.

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1986 928S
32 valve engine
All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires.
Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster
Old 02-27-2011, 09:30 AM
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