Dificult Morning Starting 1995 S4s

[modfear]

Hi Everyone.

I have a 1995 S4s that is very difficult to start after sitting for more then 8 hours. If is less then 8 hours since last run, it will usually start on the first or second try. I have replaced the fuel pumps and pressure is good.

Typical cold start procedure is as follows.

Bring the key to ignition but do not start. The fuel and sometimes the vacuum pump will run for approximately 3-5 seconds. If I do this approximately 20 times, it will usually start on the first or second try. I had to use the same procedure before the fuel pumps were replaced but maybe I had to do it 30 times. My foot is not on the gas pedal during any of this procedure.

Other then this issue, this car has been the most incredible vehicle that I ever owned!

Anybody have any ideas as to what might be causing this issue?

Thanks,

Kirk

[hotrod3]

Hi Everyone. 

I have a 1995 S4s that is very difficult to start after sitting for more then 8 hours.  If is less then 8 hours since last run, it will usually start on the first or second try.  I have replaced the fuel pumps and pressure is good. 

Typical cold start procedure is as follows. 

Bring the key to ignition but do not start.  The fuel and sometimes the vacuum pump will run for approximately 3-5 seconds.  If I do this approximately 20 times, it will usually start on the first or second try.  I had to use the same procedure before the fuel pumps were replaced but maybe I had to do it 30 times.  My foot is not on the gas pedal during any of this procedure.

Other then this issue, this car has been the most incredible vehicle that I ever owned!

Anybody have any ideas as to what might be causing this issue?

Thanks,

Kirk

<{POST_SNAPBACK}>

You might try pulling all the voltage relays in the engine compartment where the inertia switch is located and clean the contact leads and re-install them.Its a simple check,but it worked for me.

[modfear]

You might try pulling all the voltage relays in the engine compartment where the inertia switch is located and clean the contact leads and re-install them.Its a simple check,but it worked for me.

<{POST_SNAPBACK}>

Hi Randy,

Thanks for the advice. I removed, disassembled, and cleaned both the Fuel Pump & Injector Relay as well as the Ignition Relay. Both were badly burnt and dirty. Put them back in and she started right up!

Again, thanks for the advice.

Kirk