Engine "slow" to turn over
11-05-2018, 08:42 PM
#1
Track Day
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Engine "slow" to turn over
My '04 996TT has recently developed an odd issue. If I turn the key to the "start" position, it will take about 3-4 seconds before the starter actually starts to turn the engine over. In that time I can't hear *anything* happening. At first I thought that it was a failing clutch lockout switch (now replaced), but even with the switch bypassed with a jumper (apparently a common mod) the delay persists. I recently found that simply turning the key to the "on" position and leaving it there for a few seconds will do the trick, and then turning to "start" will fire the engine right up. Is there some sort of starter lockout until fuel pressure builds up? Doesn't seem likely, and again - I can't hear any pump running in the mean time, but I'm at a loss.
Cheers.
-bill k
Cheers.
-bill k
11-05-2018, 08:45 PM
#2
Drifting
My '04 996TT has recently developed an odd issue. If I turn the key to the "start" position, it will take about 3-4 seconds before the starter actually starts to turn the engine over. In that time I can't hear *anything* happening. At first I thought that it was a failing clutch lockout switch (now replaced), but even with the switch bypassed with a jumper (apparently a common mod) the delay persists. I recently found that simply turning the key to the "on" position and leaving it there for a few seconds will do the trick, and then turning to "start" will fire the engine right up. Is there some sort of starter lockout until fuel pressure builds up? Doesn't seem likely, and again - I can't hear any pump running in the mean time, but I'm at a loss.
Cheers.
-bill k
Cheers.
-bill k
11-05-2018, 08:55 PM
#3
Track Day
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I'll have to read through the repair manual (and Adrian Streather's book) to see how difficult that would be to replace. I assume that the tumblers could be moved over from the old ignition so that it wouldn't require a new key and programming. Why would the delay be so consistent?
11-05-2018, 09:03 PM
#4
You aren’t replacing the tumblers just the electrical switch portion. $30 dollar part and 20 min install with a screwdriver and some contortionist skills. Very, very, very, very, common problem with these cars. Google search faulty 996 ignition switch. Most of us keep a spare in the glove box.
the MAF and the ignition switch are two parts that cause seemingly unrelated issues that common sense makes you think “how’s that possible”?
the MAF and the ignition switch are two parts that cause seemingly unrelated issues that common sense makes you think “how’s that possible”?
11-05-2018, 09:05 PM
#5
11-05-2018, 09:23 PM
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Be aware that if you check out the DIY section, you will find the advice that the complete ignition / steering lock
mechanism should be replaced. The reason.....the ignition switch portion is prone to failure, so replacing the
complete unit gets you upgraded components that translate into longevity. But the removal / install is more
complex.
Your choice.
Tony
'02, 996TT
mechanism should be replaced. The reason.....the ignition switch portion is prone to failure, so replacing the
complete unit gets you upgraded components that translate into longevity. But the removal / install is more
complex.
Your choice.
Tony
'02, 996TT
!["02996ttx50's Avatar](data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'><circle class='avatar-circle-default' fill='%23759d7b' cx='25px' cy='25px' r='20px'></circle><text class='avatar-text-default' x='49%' y='53%' fill='white' text-anchor='middle' alignment-baseline='middle'>"</text></svg>)
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11-05-2018, 10:20 PM
#8
Be aware that if you check out the DIY section, you will find the advice that the complete ignition / steering lock
mechanism should be replaced. The reason.....the ignition switch portion is prone to failure, so replacing the
complete unit gets you upgraded components that translate into longevity. But the removal / install is more
complex.
Your choice.
Tony
'02, 996TT
mechanism should be replaced. The reason.....the ignition switch portion is prone to failure, so replacing the
complete unit gets you upgraded components that translate into longevity. But the removal / install is more
complex.
Your choice.
Tony
'02, 996TT
11-06-2018, 01:08 PM
#10
Rennlist Member
I’ve been having the same issue. Occasional no start at all even after 2-3 tries. Then it works. Just ordered a new ignition switch, looking forward to doing it
and LOL at keeping a spare in the glove box. Hopefully next to the spare maf sensors
and LOL at keeping a spare in the glove box. Hopefully next to the spare maf sensors
