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JFP in PA

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Everything posted by JFP in PA

  1. JFP in PA
    You did not get all the air out of the system, which is what caused the "dump". The preferred method of refilling these systems is under vacuum, which only takes a couple of min. and totally eliminates any issues. If you do not have access to a vacuum fill system, do a search for the "burping" proceedure (it ihas been posted several times on multiple sites) and re-purge the system. It takes a while, but eventually gets the job done................
  2. JFP in PA
    Before anyone can offer any useful help, the year and model of the car would be a good idea, as well as having the DME scanned to see what tfault code(s) triggered the display.................
  3. JFP in PA
    Your are correct; however, even with the bad thrust bearing issue, you currently have a viable core (read worth some serious money to an engine rebuilder); blow it up, you have nothing. I'd strongly think about getting a replacement while there is still some value to your current unit, which will help offset the replacement costs...........
  4. JFP in PA
    The cat is directly in the way of removing this switch; it either has to be removed or loosened enough to get around it. The easiest thing to do is just pull it.
  5. JFP in PA
    There is a very large difference: If you fix it now, the engine can be saved and go on for many years; if you don't, it could very quickly become a boat anchor requiring a much bigger expense to replace....
  6. JFP in PA
    Most of the PDK related issues we are aware of have been software related, but there have also been a couple of abuse related issues (heavy use of the "launch mode" causing overheating). One of the biggest issues I see going forward is that even the dealers cannot service these gearboxes; if oil changes and software do not correct the issue, replacement of the trans is their only option. And only the latest version of the PIWIS can diagnose these transmissions. While the car is under warranty, this is obviously not an issue; but if the car is out of warranty, you had better have a healthy check book balance as a new gearbox, in a crate, is in the $20,000 range............
  7. JFP in PA
    If the crank is moving that much along its axis, you have a thrust bearing issue, item #17 below: If this bearing is failing, the engine has to come apart.
  8. JFP in PA
    Living in the former "Arnold-Stan", your fuel choices are limited by what the "authorities" allow the stations to sell, particularly in major metropolitan areas. That said, your DME is fully capable of dialing back the timing and fuel curves to deal with as low as 83 octane, but will obviously not produce maximum performance at that level. At the other end of the spectrum, going nuts with overly expensive high octane racing fuel, or additives, will not buy you much additional HP either, as the DME can only crank up the curves so far, making the “high priced spread” a waste of money. On 91 octane, you will not be giving up much compared to 93, so I would not be overly concerned about it.
  9. JFP in PA
    As strange as this is going to sound, swapping out the pump is the cheapest part of doing one of these. The time (read labor) to make sure the tank is fully empty, then refill it with a precise amount of fuel, and do the recalibration is going to be a couple of hours of shop and diagnostics time. Pulling and replacing the pump is about an hour. Unless you have access to everything you need, swapping out the pump and then towing the car to the dealer is most likely going to end up costing you more than if you just let them do it…….
  10. JFP in PA
    To do it properly, cleaning and repacking the CV bearings as well as installing new boots, pull the axles on do them on the bench. Once you disconnect one end, you are 75% of the way to taking it out of the car.........
  11. JFP in PA
    +1 on Loren's comments; far too many parts (O2 sensors and MAF units) get changed without doing proper diagnostics, only to be found not to be the issue......
  12. JFP in PA
    First of all, stop randomly changing parts and find out what is causing the alarm fault. These cars store the last ten alarm faults in computer memory, scan the car with a PIWIS unit or the Durametric software and you will know for sure where the issue lies. Quite often, the two favorites are the armrest contact switch, or the radio security ground wire.
  13. JFP in PA
    I just love it! Then charge inflated prices, and we are supposed to resort to bribery to gain relief? Yikes!
  14. JFP in PA
    Not at all surprising. When fuel pumps crap out, slow and almost unperceivable changes in performance are typical; many customers comment that after we changed out their pumps their cars felt “lighter on their feet” or “more responsive”. Not surprising as the both the fuel pressure and delivery volumes dropped off as the pump deteriorated, and then suddenly returned with the installation of a new unit. As these cars are equipped with a fuel system test port, periodically checking the pressure and delivery has caught pumps on the way out before any problems were even noticed.
  15. JFP in PA
    Just watch out for cheap aftermarket "knock off" axles coming in from over seas. While some are pretty good, many are vastly inferior to the OEM units, not just in the steel, but the CV joints and boots as well. As replacement OEM unit are rather pricey, you can rebuild your current units for low bucks, and you end up with solid quality at a very reasonable price. Another option is to find a local axle rebuilder that will overhaul your units; not a cheap as doing them yourself, but still better than replacing them.
  16. JFP in PA
    Along with the $400 oil changes.............. :eek:
  17. JFP in PA
    Stories like this are what keep independents in business………… Granted, dealers have higher overhead, but there are limits to how much the slick waiting area, free coffee, and bagels will cover.
  18. JFP in PA
    I'm not really sure what you are referring to as "an anti drain back collar", but if you are using the OEM design cartridge filter, it would be well worth your while looking at the Wix/NAPA Gold 57211: The filter media has a pore diameter about 30% smaller the the OEM cartridge, and uses molded plastic end caps that totally ecapsulate the filter media rather than being butt glued to treated paper end caps as the OEM's are. A terrific performing filter at about half the price of the OEM filters. If you are using one of the LN spin on adaptors, Wix/NAPA Gold also makes an excellent spin on using the same small pore filter media in their 51042 unit. Based upon their overall quality and performance, we use and recommend Wix/NAPA Gold oil and air filters for our customer's Porsches.
  19. JFP in PA
    The car's computers record the last ten alarm faults, get the car scanned and you will have a list of what is triggering the alarm.
  20. JFP in PA
    The clutch can be replaced by itself, but you will need a special tool to get it off.
  21. JFP in PA
    They are totally different cars; the Turbo has “the look” and can lay on gobs of power, but some of it is lost to the Tip. The 4S does not have as much raw power, but is a very refined handler and can still be a blast to drive, plus the PDK is a huge improvement over the Tip. Depends upon where you head is at...........
  22. JFP in PA
    There is a neutral safety switch that prevents starting the car in gear; the unit is pricey (about $300) and a bit of a bear to get at (very littlle room under the car, plus a cat is in the way). Yours sounds like it is on the way out (not uncommon):
  23. JFP in PA
    No. The only way to clear the air bag light is with a PIWIS or the Durametric system; no other aftermarket unit will do it.
  24. JFP in PA
    Problem with cleaning up an intermix is that each one is different, so they are typically quoted on a “time and materials” basis; it could be a couple hundred dollars, or a lot more depending upon how long the car was run in that condition, which makes the clean up much more difficult, plus time and materials consuming………..
  25. JFP in PA
    We generally replace the serpentine belts whenever we are doing any work that requires releasing it, regardless of how the belt looks. On a mileage basis, we swap them out at around 30K miles, purely as a precautionary measure. The belt is cheap, usually less than $30 retail, and easy to replace. On the other hand, loosing it can strand you, or could end up costing you an engine. On an 8 year old car, I would definitely replace it. I would also suggest carrying the used belt in the boot as a spare, as a replacement can sometimes be hard to find quickly at 2AM...........
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