90 100 starting problem
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90 100 starting problem
OK I am still needing help on this 1990 100. I know it needs a new iginiton lock assy. When I turn the key to start the car everything come on but nothing happens....when I raise the key in the tumbler the car will fire right up.
Now here is the problem last night onece again I was driving the car for about an hour brought the car home let it sit for about 30 min. and she would not start. Raising up on the key....nothing worked. Do you think the starter is getting heat soaked and not turning over? All other electrical items work and the battery is new. I know about the ignition switch problem but would run time have anything to do with that?
Thanks
Brian Felts
Now here is the problem last night onece again I was driving the car for about an hour brought the car home let it sit for about 30 min. and she would not start. Raising up on the key....nothing worked. Do you think the starter is getting heat soaked and not turning over? All other electrical items work and the battery is new. I know about the ignition switch problem but would run time have anything to do with that?
Thanks
Brian Felts
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Re: Have you measured voltage at the starter?
No what should I be looking for @ The starter? How much Voltage. Please keep in mind the starter will not kick over at all only when its Hot.
Brian
Brian
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Re: Is the starter turning? Be more specific on the "No Start". It has many forms...
No the starter will not turn...click or bump over in any way. The problem only happens whe its hot, it will start every time as long as the car has not been running for 30 minutes or more.
I am not getting any check engine light. Car runs excellent when it does start. Does the Crank Ref or
hall sender have any input into the starting circuit?
Brian
I am not getting any check engine light. Car runs excellent when it does start. Does the Crank Ref or
hall sender have any input into the starting circuit?
Brian
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Start by pulling codes...
to rule out the hall and crank sensors as boxerfan suggests.
However, I suspect you're starter and or the wiring is failing to operate properly at higher temps. You should see around 12-12.5 v at the starter. If you are seeing voltage when hot, then the starter is most likely at fault. If no volatage, then you may want to consider pulling the wires from the starter and freshening the connections to the starter.
However, I suspect you're starter and or the wiring is failing to operate properly at higher temps. You should see around 12-12.5 v at the starter. If you are seeing voltage when hot, then the starter is most likely at fault. If no volatage, then you may want to consider pulling the wires from the starter and freshening the connections to the starter.
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Re: Start by pulling codes...
Well I have pulled the wires from the starter and cleaned the connections. I also know it has a new ground wire. I am not getting any check engine light. However the car run perfectly when started cold or just ran for 10 to 20 minutes.
Brian
Brian
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Re: Is the starter turning? Be more specific on the "No Start". It has many forms...
No, crank ref and hall will not affect the starter operation. Test for trigger voltage at the starter. You can also bridge fromt he +12V cable to the starter trigger on the solenoid. MAKE SURE THE P-BRAKE IS ON AND THE CAR IS IN NEUTRAL WITH WHEELS BLOCKED!
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I truly Appriciate your help.
I will try the jumper. I am trying to save this 100 for a great family I do work for and this is my first Audi to work on. I usually do Mercedes or BMW.
Yeah when warm I hit the key and it just sits ther No clicking on the starter. No rotation at all. All the electronics work fine on the dash...lights....all of it. When cold or I just run it in the garage for 20 minutes starts right up. Drove it for an hour yesterday in stop and go traffic and when I went start it again after it sat for 30 min then the no start.
Thanks again
Brian
Yeah when warm I hit the key and it just sits ther No clicking on the starter. No rotation at all. All the electronics work fine on the dash...lights....all of it. When cold or I just run it in the garage for 20 minutes starts right up. Drove it for an hour yesterday in stop and go traffic and when I went start it again after it sat for 30 min then the no start.
Thanks again
Brian