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'94 940 not starting when cold

 
DW
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      21-01-2005
This is similar to the '92 740 post.
I have a '94 940 that starts great except for the really cold days.
(Canada)
On these cold days the motor turns over strong (until I wear out the battery
and resort to boosting). Boosting doesn't help.
The engine will fire for a VERY short time (.5 sec) I have replaced
distributor cap, fuel filter, plugs and always have gas line antifreeze in
the tank. As soon as the weather warms up it starts and runs great.

In another post the group mentioned a cold start injector. Would a Canadian
940 have such a device? Is there anything else I can check or have looked
into?

The ironic thing is that on these coldest days of the year my 1980 Bertone
starts right up and brings me to work.

Thanks for your comments in advance. You are a helpful group.

Doug Wildeboer
Toronto Canada.


 
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Rusty
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      22-01-2005
I had the same problem with my 87. Believe it or not, it was a tiny bit of
frost on fuse #1...the fuse that controls the fuel pump. Give the fuse a
slight twist in the socket and see if that helps.

RS




"DW" <(E-Mail Removed)> wrote in message
news:ITfId.61881$(E-Mail Removed) ...
> This is similar to the '92 740 post.
> I have a '94 940 that starts great except for the really cold days.
> (Canada)
> On these cold days the motor turns over strong (until I wear out the
> battery and resort to boosting). Boosting doesn't help.
> The engine will fire for a VERY short time (.5 sec) I have replaced
> distributor cap, fuel filter, plugs and always have gas line antifreeze in
> the tank. As soon as the weather warms up it starts and runs great.
>
> In another post the group mentioned a cold start injector. Would a
> Canadian 940 have such a device? Is there anything else I can check or
> have looked into?
>
> The ironic thing is that on these coldest days of the year my 1980 Bertone
> starts right up and brings me to work.
>
> Thanks for your comments in advance. You are a helpful group.
>
> Doug Wildeboer
> Toronto Canada.
>
>



 
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Peter K L Milnes
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Posts: n/a
 
      22-01-2005
Doug, your 940 will most certainly have a Cold Start Injector unless it has
a 16-valve twin-cam motor.

Cheers, Peter.

"Rusty" <(E-Mail Removed)> wrote in message
news:79lId.47889$(E-Mail Removed) ...
>I had the same problem with my 87. Believe it or not, it was a tiny bit of
>frost on fuse #1...the fuse that controls the fuel pump. Give the fuse a
>slight twist in the socket and see if that helps.
>
> RS
>
>
>
>
> "DW" <(E-Mail Removed)> wrote in message
> news:ITfId.61881$(E-Mail Removed) ...
>> This is similar to the '92 740 post.
>> I have a '94 940 that starts great except for the really cold days.
>> (Canada)
>> On these cold days the motor turns over strong (until I wear out the
>> battery and resort to boosting). Boosting doesn't help.
>> The engine will fire for a VERY short time (.5 sec) I have replaced
>> distributor cap, fuel filter, plugs and always have gas line antifreeze
>> in the tank. As soon as the weather warms up it starts and runs great.
>>
>> In another post the group mentioned a cold start injector. Would a
>> Canadian 940 have such a device? Is there anything else I can check or
>> have looked into?
>>
>> The ironic thing is that on these coldest days of the year my 1980
>> Bertone starts right up and brings me to work.
>>
>> Thanks for your comments in advance. You are a helpful group.
>>
>> Doug Wildeboer
>> Toronto Canada.
>>
>>

>
>



 
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Mike F
Guest
Posts: n/a
 
      24-01-2005
DW wrote:
>
> This is similar to the '92 740 post.
> I have a '94 940 that starts great except for the really cold days.
> (Canada)
> On these cold days the motor turns over strong (until I wear out the battery
> and resort to boosting). Boosting doesn't help.
> The engine will fire for a VERY short time (.5 sec) I have replaced
> distributor cap, fuel filter, plugs and always have gas line antifreeze in
> the tank. As soon as the weather warms up it starts and runs great.
>
> In another post the group mentioned a cold start injector. Would a Canadian
> 940 have such a device? Is there anything else I can check or have looked
> into?
>
> The ironic thing is that on these coldest days of the year my 1980 Bertone
> starts right up and brings me to work.
>
> Thanks for your comments in advance. You are a helpful group.
>
> Doug Wildeboer
> Toronto Canada.


There are several things that can cause grief, starting with technique.
Avoid short, repeated cranks, engage the starter for longer periods of
time, and don't touch the throttle until the engine actually starts, or
you'll flood it.

Then there's the standard tuneup stuff, air filter, plugs, cap, rotor,
wires. Other parts that can cause intermittent problems when cold could
be the crankshaft sensor (on bell housing below the distributor), radio
suppression relay (black 4 pin relay, usually mounted on a shock tower)
or fuel pump relay (white 6 pin relay behind the fuses on the center
console).

Don't worry about your cold start valve. If you have one and it's not
working you'll notice hard starting at much warmer (even above the
freezing point) temperatures.

--
Mike F.
Thornhill (near Toronto), Ont.

Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
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