5 seconds of cranking to start

[cody at 5000tq.com]

Grant that would not work on a 5ktq. They only run the fuel pump when  
the engine is turning, whether by the starter or by running of course.

Jeff, this is not 'normal' for your car, but not uncommon at all among  
CIS fuled cars. Grant's suggestion of the leaking check valve is a  
likely culprit, as are the fuel pressure accumulator, o-ring on the  
pressure by-pass piston in the fuel distributor, warm-up  
regulator/differential pressure regulator, and leaking injectors.

Diagnosing this issue without a CIS pressure gauge set can be tricky.  
Start by watching carefully for a puff of white smoke when starting.  
This would hint at leaky injectors. Next you could install a fuse in  
the top of the fuel pump relay, which would put the car in diagnostic  
mode and make the fuel pump run any time the ignition is on. Now  
Grant's test is valid - when it's cold like it normally would be you  
turn the key on and just let the pump run for a few seconds, then try  
to start. If it starts right away, or at least faster then usual, then  
we have determined that you have a problem with fuel pressure leakage.  
 From there it is hard to diagnose without a gauge set, so you may  
want to either purchase one or visit a friendy shop that is properly  
equipped. You *could* try removing the fuel injectors (engine not  
running) and look for leakage, but from there it's all guesses without  
a gauge set.

-Cody Forbes
http://www.5000tq.com



Quoting Grant Lenahan <glenahan at vfemail.net>:

> Uncommon.  But the real question is "did something change?"
>
> I have foudn that long cranking can be a sign of a weak fuel pump or
> leaking check valve. On older cars, try this:
>
> 1. turn key to run, listen for fuel pump.
> 2. after 3-5 sec, start car
>
> Did it catch faster?
>
> Grant
> On Oct 7, 2007, at 10:00 PM, JeffreyZentner at aol.com wrote:
>
>> Hi All
>> I have a question I have a 88 5KTQ and when I start it when it is cold
>> it
>> takes about 5 seconds of cranking to start it. It always starts but it
>> seams like
>> that is a lot of creaking is this normal or do I have a problem?
>>
>>
>> Jeff Zentner
>> Alta CA
>>
>> 88 5KTQ
>>
>>
>>
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