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Discussion summary
YOUR RESEARCHIdle RPM & wiper blade queries
Leading reported evidence
Replace wiper arms and blades
Performed · outcome unconfirmed
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0
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0
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1
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Performed · outcome unconfirmed
Again, I also changed the wiper arms and blades to try to clear the screen more effictively but to no avail.
Leading evidence: 'Replace wiper arms and blades' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace wiper arms and blades' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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Generation: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Great Forum. I've been checking in for several months now and have found them extremely useful, especially while tracking down my current car a 993 Targa which I purchased 1 month ago. Having previously owned a Boxster S (no hairdresser jokes please) it has taken me a while to adjust to the 993 (offset pedals, etc) but now that I have I love it too bits. However, there are a couple of questions that have been niggling me and I'm hoping someone can answer:
1. When the engine is warm and idling the oil pressure is just below 2 bar and RPM 800'ish, both with very very slight fluctuations. But about every minute or so (or if I increase the heater fan speed) the pressure/RPM will drop (i.e. RPM = 700) then increase (i.e. RPM = 1000) before settling back to its original position. Is this normal or should the engine idle smoothly all the time? FYI - I have the AC on all the time if this makes any difference.
2. The first time I took the car out in the rain I noticed that the top (18") wiper blade smeared rain across the driver's side of the windscreen as it came to rest. So out I went and bought two new Bosch wiper arms (15" & 18") thinking that this would solve the problem. But it is exactly the same. Both of the blade ends do not make full contact when in the parked position, I tryed bending them slightly but no joy. Is this one of the 993's idiosyncrasies or am I missing a trick. The passenger side clears perfectly!
Any help would be appreciated.
TIA.
Migration info. Legacy thread was 14884
Jon,
I had exactly the same issues with my 993. Even without a/c on, occasionally the idle speed would settle at around 1000 rpm, ultimately coming to rest within a minute or so at 800 rpm. Again, I also changed the wiper arms and blades to try to clear the screen more effictively but to no avail. I've only owned one 993, so perhaps it's not definite, but I think this is a 993 idiosyncrasy. Mine always left a smear of water at about eye level arcing across the drivers side.
Enjoy the car.
Migration info. Legacy thread was 14885
Hi Jon,
I just joined the forum too and also just got myself a 993 C4.
I have the same two problems as you. The wipers I think are a 911 trait, I changed mine and the drivers one still misses the last few inches.
I took my car to Northway near Reading (what good blokes) and they reckon my Idle Stabiliser Valve is knackered. A new one is over £200, but I'm still searching.
Hope it helps,
Don.
Migration info. Legacy thread was 14924
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