Odd starting problem

thanks Brad - makes sense to keep it that way - I agree. I am going to order the two replacement housings and just re-do them. Then go from there.

Thanks for the Pic.

As a side note - I finaly finished fixing the A/C, we found a leak on my purple line (the extra aux cool/heat liine used only in earlier models) so I go to it this weekend and capped the purple line off. The center vent started working (the Purple is a shared vac line with the Orange, so if one fails the other is affected) and I had crispy cool air after about a minute ot two.! Yeah.

Now to finish the starting issue and I can resume work on just upgrades!

Wish you luck on the starting issue even though I think you have found the problem.

The purple line can be uncapped and fixed at a later time. Good repair for now.

Brad

Definitely heat related too. With the oppresive (105+ = how it feels temp) here in Va recently, the garage is really humid and hot. Once the engine sits for about an hour...it is too hot to start. out in the air below say 95 degrees, seems start fine after it sits a while ( I do drive it to work when I can)

So I found a 75c thermostat at 928 Spec....for 25.00! I ordered that (I have the original t-stat in the car, was never changed out) along with a new male 14 pin connector. My buddy will change them both out while I am out on vacation in Myrtle Beach starting this weekend.

Will let you know how that goes in a a couple of weeks!

So here is what we did to fix it, and after 2 weeks, no recurrence.

1 - pulled the wiring harness, fixed bad spots and ran a new separate yellow cable from the 14 pin connector to the starter

2 - replace the thermo with a 75 degree centigrade one and a new 75c for the front cooling fan.

No starting issues and no heat-sinking anymore. The engine runs right in the middle, sometimes a little above (after the Fun Run at the Frenzy for example) or a little below with very mild driving.

Car starts right up no matter how long it does or does not sit. Aslo, a side benefit, the alternator gauge is showing another 1.0, around 13.7 now and even with all lights on, and fogs and stereo and A/C does not go below 12 and never falters at idle.....needless to say this is a big move forward for me on multiple fronts.
thanks to everyone for the great advice!!!!!

Next up - the Brake pressure light came back, since I have replaced the solenoids under the master cylinder and because the light comes on after a while and not when I hit the brakes necessarily, I am leaning towards vacuum assist, also the A/C stopped being cold and cruise control doesn't work right. Both were functioning. Will let you know how that works out!

Congrats with your recent progress on your 928! :cool:

Strat_928;6557 wrote: So here is what we did to fix it, and after 2 weeks, no recurrence.

1 - pulled the wiring harness, fixed bad spots and ran a new separate yellow cable from the 14 pin connector to the starter

2 - replace the thermo with a 75 degree centigrade one and a new 75c for the front cooling fan.

No starting issues and no heat-sinking anymore. The engine runs right in the middle, sometimes a little above (after the Fun Run at the Frenzy for example) or a little below with very mild driving.

Car starts right up no matter how long it does or does not sit. Aslo, a side benefit, the alternator gauge is showing another 1.0, around 13.7 now and even with all lights on, and fogs and stereo and A/C does not go below 12 and never falters at idle.....needless to say this is a big move forward for me on multiple fronts.
thanks to everyone for the great advice!!!!!

Next up - the Brake pressure light came back, since I have replaced the solenoids under the master cylinder and because the light comes on after a while and not when I hit the brakes necessarily, I am leaning towards vacuum assist, also the A/C stopped being cold and cruise control doesn't work right. Both were functioning. Will let you know how that works out!

Stan dose this sound like one of those (will not restart after sitting) threads that I have seen on other sites?

I wonder if this should be documented as a tech tip check for a no start issue?

What do you guys think?

Brad