Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

Iv recently purchased a Porsche 966 C4S with 55k miles with a rear end wreck, it had sat for at least 2 months with out a proper start up. upon arrival i did an inspection, it had a few pulleys bent including the tensioner pulley so i can't necessarily run the serpentine belt with out removing the engine and replacing it, air box was broken so it had to be removed including the mass airflow sensor. exhaust was untouched. no damage to the block. after preparing it i started the car for the first time, it ran good i listened in no ticks or knocks everything was running fine ( it ran with out a serpentine belt nor a air box/mass airflow sensor) i ran it for a few minutes then it started to have a slight tick and gradually increased to a steady ticking, i ran a OBD2 test for fault codes, the only codes i got was a mass airflow sensor fault and the throttle body code, other than that no other codes. i read around online i should replace the oil, because it could have been a stuck lifter or sticking valves. i changed the oil with 5w40 and added a valve cleaner to my gas, ran it a a few times for a few minutes at a time not to over heat my engine, at the moment i don't know if this may fix the problem because i can't necessarily drive the car, if any one can tell me if I'm at risk of loosing my engine if i do fix the engine up drive it around, or i should fix it up and take it for a drive and it may go away. or i should just take it straight to a mechanic. Please let me know your thoughts.

Share this post


Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

Iv recently purchased a Porsche 966 C4S with 55k miles with a rear end wreck, it had sat for at least 2 months with out a proper start up. upon arrival i did an inspection, it had a few pulleys bent including the tensioner pulley so i can't necessarily run the serpentine belt with out removing the engine and replacing it, air box was broken so it had to be removed including the mass airflow sensor. exhaust was untouched. no damage to the block. after preparing it i started the car for the first time, it ran good i listened in no ticks or knocks everything was running fine ( it ran with out a serpentine belt nor a air box/mass airflow sensor) i ran it for a few minutes then it started to have a slight tick and gradually increased to a steady ticking, i ran a OBD2 test for fault codes, the only codes i got was a mass airflow sensor fault and the throttle body code, other than that no other codes. i read around online i should replace the oil, because it could have been a stuck lifter or sticking valves. i changed the oil with 5w40 and added a valve cleaner to my gas, ran it a a few times for a few minutes at a time not to over heat my engine, at the moment i don't know if this may fix the problem because i can't necessarily drive the car, if any one can tell me if I'm at risk of loosing my engine if i do fix the engine up drive it around, or i should fix it up and take it for a drive and it may go away. or i should just take it straight to a mechanic. Please let me know your thoughts.

 

If the car has been sitting, it might be a temporary thing.  Problem is that you need to get the car into running and driving condition to find out.

 

Also, please do not duplicate post, it is against forum rules.  I have removed you second posting of this.

Share this post


Link to post
Share on other sites

The M96 ticking at start-up is common, as it is a boxer engine and oil drains causing the top lifters to be under-lubricated until oil flows through them. Likewise, the M96 uses a timing chain as opposed to a timing belt, so you're going to get more noise at start up until the tensioner is fully pressurized. When you first start it cold, blip the throttle above 2k RPM. This isn't going to hurt anything - the Bosch Motronics temporarily increases the RPM above idle at startup (although not to as high of an RPM as it probably should), and plenty of people drive the car with the engine cold to 3k+ RPM without any problems. On my 996, this stops the ticking. If ticking persists, especially when warm, then stop driving the car. Drain the oil and get an oil analysis done. Cut open the air filter and look for any metallic flakes. Worst case, you get a preemptive oil change. Best case, you identifiy an impending engine failure before too much damage is done.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By denaliberry
      Hello Renntech Community. Hope everyone has had a lovely day/ evening. Well... After owning 2 previous porsche's there is no doubt we all run into A LOT of issues. I have an 04 Boxster S with 117K miles on her. Well taken care of, just recently had an oil change. While driving my car on the interstate i felt a drag in the acceleration.It felt like the clutch was slipping but after driving it a little more it cleared up...  (Previously was an oil leak, I tightened the drain plug and added more oil prior to this incident and all was well) Then, while driving the car would accelerate any more, I attempted to downshift but it kept happening. The car died after I pulled off on the highway and after continuous hours of attempting and failing I called a flat bed and had her taken home. I ran tests on the relay, All is well with it. I added gas and a octane booster to attempt to clean it out. That didnt work. Checked fuses and those are all good. I suspect a fuel pump but Im not sure. Thank you!
       
      - Hopefully this is all enough information to help me out 
       
      - Denali
    • By SPIRO
      Hi everyone.  My 2006 Boxster S suddenly started making a squealing noise.  Noise goes away at higher RPM, only to come back at lower RPM and at idle. Not related to gear or clutching at all. Noise seems loudest at the rear of the car; I can hardly hear it inside with the windows closed.  Is this a serpentine belt issue? Or the bearing of some engine accessory? I have 50,000 miles, and have already changed the serpentine belt once, around 4-5 years ago,  just due to age of the car. I have not yet had the time to open up the engine compartment to look further. If it's a belt, then I would expect more noise from inside the cabin, would I not?  I have attached a recording indicating the squeal going away when I rev the engine.
      Recording 26.wav
    • By Garra671
      Tried googeleing it but couldn’t find what I was after.    Was curious if anyone knows what type of flat 6 the 986 boxster has?
       
      Is it a a true boxer engine? Or a horizontally opposed flat V?     True boxer meaning it has individual crank pins for each piston and is a true 180degree angle.    Thanks in advance 
    • By Bardia Manafi
      Hi all, just purchased a 1961 notchback 1600s, I have never drove a Porsche until the day I purchased this car, got the bug now and i love Porsches more than ever now, the car is in very good shape, but i want to change all the fluids, grease all the parts, and do all the maintenance there is, the oil was so dark when I checked the level and it was all the way to max line of the stick, i would appreciate if you guys can tell me where to buy all the maintenance parts, and where can I buy the shop manual, and what are the things I should do, there is a small leak on the floor from engine very small, but a palm size of oil from transmission on the ground,  thanks guys cheers😁

    • By Graeme Tate
      I hate my pig but I love my pig, can anyone please help me before I send it for scrap. Over the space of the last 4 years of ownership my car has been in the Porsche dealers for 2 years in total with suspension problems, to cut a long story short this is now sorted and was due to a faulty replacement air bag being fitted. Moving on after 3 months of (almost) trouble free motoring this is what’s happening now and would love some advice as the closest porsche dealers is over 200 miles away from me.

      When I picked up the car from Porsche  it ran out of petrol before I got to the garage at the end of the road and although I filled it up it  the engine warning light remained on I assumed this was just fuel related and drove home with it on and reset it when I got home.
      Wind on a few weeks and the engine light came back on and gave me a camshaft position sensor error p0016 so I sent the car to my local Porsche mechanic who changed out the sensor and did a full service on the car including plugs filter oil etc etc. All this time the car has been running fine but as I wanted the sensor light out it was changed. However after changing it out the light came back on almost straight away. The car has been a bit sluggish to start sometimes and sometimes on pulling away from a stop has also been hesitant. 
      This was about 3-4 weeks ago and now it is worse again, at tickover it’s noisy, it doesn’t like acceleration and is running really rough although if you are going over 50mph it doesn’t have a problem and seems to run fine. The EML is now flashing rather than being a solid light. I attach a video of it running.
      Any thoughts would be a help before I decide to get it hauled back across again 



      Sent from my iPhone
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.