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Question '83 944 Warm Start slightly problematic

Not a real serious problem but I'd like to address it. Car starts great when it hasn't been run for a day or more. Will start after barely turning the key on half a crank. However, once it has been run for say 30 minutes, subsequent starts require more cranks...say 3 to 4. The more days in a row I drive it, the longer it takes the next morning to start it, up to about 5 or 6 cranks. Always starts after 5 or 6 cranks. Battery is good and ground is good and starter connections are clean. I have some theroies but interested in other opinions. O2 sensor is new and engine temp sensors are within spec. MAF also appears to be within spec. I sense it may be running a little rich at start-up but I could be leading the witness here a little. Suggestions? New to this thread so I may have missed it if this was addressed previously.

Old 09-29-2004, 07:10 PM
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This is a symptom that happens when starters are beginning to go.

Not saying that is your problem but it IS a pretty classic symptom.

If this problem continues to worsen that is probably it.......a quick test.

Next time you go to warm start...crank it only once. if no go. get out and wack the starter with something (hard). Get back in and try to start it....if it fires, you have your problem.






side note...if you do change the starter. Make sure you mark all wires. the new starter will probably have more connections than you have wires. Just put the old wires on in the same orientation.
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Old 09-30-2004, 10:04 AM
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Don't hit the starter TOO hard...Perm magnets are prone to crack/come loose with heavy impacts.
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Old 09-30-2004, 01:15 PM
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fuel line check valve?
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Old 09-30-2004, 01:52 PM
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to check if it was the fuel line check valve I used a clamp to close down the fuel line prior to the pump to stop potential back-flow. waited overnight and re-started. Still had the delayed start so assumed it wasn't a check valve issue...fyi Should have mentioned that previously but forgot
Old 10-01-2004, 03:46 AM
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I didn't realise this was a problem.
BOTH my S2s have always taken about 6 or 7 cranks to start. It always starts (except when the fuel pump relay goes) hot or cold but always after 6 or 7 cranks.
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Old 10-01-2004, 08:43 AM
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Replaced starter....after 21 years why not. Unfortunately didn't help my warm start issue....any chance it could be a DME relay?
Old 11-13-2004, 03:06 AM
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My '83 does the same thing. Not taking 3 or 4 starts, but will crank longer before firing on first start. I am assuming you are not talking about cranking slower (starter problem) you are talking about firing. On the first crank of a warm start next time, comtinue cranking until it starts (within reason). 20 seconds of continous cranking would be my limit. Cold start, mine will fire in 3 to 5 seconds of crank. Warm, it will be 10 to 12 seconds of cranking. I always assumed it was due to fuel vaporizing in the rail because of the heat absorption, or fuel bleeding back past a check valve. Mine has done this as long as I have had it.

Let us know.
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Old 11-13-2004, 10:11 AM
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when cold and not run the prior day I'd say mine starts in the blink of an eye...I mean I barely turn the key and it is running.... seems like barely even one crank.....next day after I've run it, it takes noticeably longer...I'd say 6 to 8 seconds assuming a crank takes about 1 second. Then, once it is started and run, restarts will be 3 to 4 seconds. Not a cranking speed issue as it turns at proper speed and battery is fully charged.

Old 11-14-2004, 01:52 PM
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