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Is my 993 C4S overheating?

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Old 03-23-2017, 10:51 PM
  #31  
BlackSnake99
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It wasn't that much more work to drop the motor and I took care of a couple of leaks and 'while you are in there' items.
Old 03-23-2017, 11:03 PM
  #32  
NYC993
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Originally Posted by Quadcammer
Remove the intake and move sai pump and access is excellent
yep, done it a few times now.

See on the right under the SAI pump
Old 03-23-2017, 11:05 PM
  #33  
NYC993
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Originally Posted by BlackSnake99
It wasn't that much more work to drop the motor and I took care of a couple of leaks and 'while you are in there' items.
Dropping engine in under an hour?...we are not that good.
Old 03-23-2017, 11:11 PM
  #34  
phoneyman
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I'll add that sender unit to the list of things for "while you're in there". Thanks for the info, everybody.
Old 03-23-2017, 11:49 PM
  #35  
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There is a temp sensor right beside the oil pressure sender, good idea to replace it as well, I'd also do that breather gasket as it's a common leak area

As someone said earlier, only use the Porsche parts, I think the sender was around 80 dollars and the temp sensor was 60ish if I remember correctly from last year
Old 03-23-2017, 11:53 PM
  #36  
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How long does it take to get the intake off and what is involved?
Old 03-24-2017, 08:41 AM
  #37  
pp000830
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Originally Posted by NYC993
yep, done it a few times now.
See on the right under the SAI pump
Outstanding picture of the engine. Put it in my engine picture library for future reference.

Do you have other views that are not easily seen without disassembly or engine out? Could be a "show me your engine details" thread.

Thanks again,
Andy
Old 03-24-2017, 08:52 AM
  #38  
pp000830
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I would consider replacing the Varioram actuator on the underside of the intake manifold and maybe its solenoid valve as well if they are the original ones.
If removing the manifold provided improves visibility, it may be a good time to inspect the air pump wires for heat deterioration.

Just some thoughts.
Andy
Old 03-24-2017, 10:09 AM
  #39  
Quadcammer
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Originally Posted by AllanH
How long does it take to get the intake off and what is involved?
I've done it twice with an extra set of hands. I think we did it in about 45 minutes.

Basically unbolt the airbox and maf,
unbolt the blower motor and all accompanying nonsense like hoses, wires, etc.

Unplug all the vac connections, unplug a few electrical connectors

Remove IAC, Remove air duct above fan, remove throttle body elbow.

Remove throttle and cruise control cable

Undo 6 top hose clamps on intake port

lift and wiggle out.
Old 03-24-2017, 10:27 AM
  #40  
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Originally Posted by NYC993
i hope there is a note of sarcasm in this statement that is not apparent.
There was- but I guess I am not very good at that. I don't however, like people's blatant slams on other RL's.
Old 03-26-2017, 05:30 PM
  #41  
SammyS
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***Found the Likely Culprit- Now Solution****Car was idling fine but looks exactly like this
. Talked to a Porsche mechanic said its probably the sensor like the guy said in the video comment section..... ********New issue, the car before hand had a couple misfires (cyl 3 n 6) on occasion. Now 1,3,5,6 are misfiring and random misfire. Drove good at start up but started to get worse while driving it 150 miles round trip. Currently have it back in the garage. Now on start up the one or two unspecified cylinders consistently misfire on each cycle. Does this sound like a vacuum problem? Spark and/or wires? fuel pump? Still trying to diagnose it. If I cant I will take it to a technician sometime next week
Old 03-26-2017, 05:41 PM
  #42  
71-3.0-911
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Likely not a fuel issue. I would start with your distributor and go from there. Make sure your belt is intact that drives the secondary. I don't think vacuum would cause misfires either.
Old 03-26-2017, 11:06 PM
  #43  
OverBoosted28
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Originally Posted by SammyS
***Found the Likely Culprit- Now Solution****Car was idling fine but looks exactly like this https://www.youtube.com/watch?v=HK4c9uJ8Dc8. Talked to a Porsche mechanic said its probably the sensor like the guy said in the video comment section..... ********New issue, the car before hand had a couple misfires (cyl 3 n 6) on occasion. Now 1,3,5,6 are misfiring and random misfire. Drove good at start up but started to get worse while driving it 150 miles round trip. Currently have it back in the garage. Now on start up the one or two unspecified cylinders consistently misfire on each cycle. Does this sound like a vacuum problem? Spark and/or wires? fuel pump? Still trying to diagnose it. If I cant I will take it to a technician sometime next week
You had advised in the other thread, that your CE was flashing. That's always a bad thing. Get car fixed, before ya drive her any longer. Even if it's just a sensor affecting your oil pressure reading, the misfires could be multiple things. Combined with possibly poor oil pressure :-(
Old 03-26-2017, 11:22 PM
  #44  
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Originally Posted by SammyS
<snip>... The new engine is a used and was just put in. <snip>
Originally Posted by SammyS
***Found the Likely Culprit- Now Solution****Car was idling fine but looks exactly like this https://www.youtube.com/watch?v=HK4c9uJ8Dc8. Talked to a Porsche mechanic said its probably the sensor like the guy said in the video comment section..... ********New issue, the car before hand had a couple misfires (cyl 3 n 6) on occasion. Now 1,3,5,6 are misfiring and random misfire. Drove good at start up but started to get worse while driving it 150 miles round trip. Currently have it back in the garage. Now on start up the one or two unspecified cylinders consistently misfire on each cycle. Does this sound like a vacuum problem? Spark and/or wires? fuel pump? Still trying to diagnose it. If I cant I will take it to a technician sometime next week
So you have a new/used engine that was recently installed.
Agree with 71-3.0-911 that your issues don't appear to be fuel related.
Your misfires suggest spark, and remember that an intermittent connection will affect that spark.
Check all connections associated with spark. Coils, caps, plug wires, grounding points.
I had an issue with misfires on cylinder 6 that resolved after cleaning all the grounding points. See this post for more details.

Oil level looks a tad low (but it did bounce off the bottom at the start of the video), oil temp is high, oil pressure is low, oil light comes on, and the misfires.
That is an awful lot of bad going on.
Seems to me that you have more than 1 oil issue.
Old 03-26-2017, 11:23 PM
  #45  
SammyS
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Originally Posted by OverBoosted28
You had advised in the other thread, that your CE was flashing. That's always a bad thing. Get car fixed, before ya drive her any longer. Even if it's just a sensor affecting your oil pressure reading, the misfires could be multiple things. Combined with possibly poor oil pressure :-(
Yeah she isn't going anywhere until this is squared up unfortunately


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