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JFP in PA

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Everything posted by JFP in PA

  1. JFP in PA
    Run a metal pump for a while and you will completely understand. Porsche uses a composite impeller pump because there are only a couple of thousandths clearance between the front of the engine case and the rear of the impeller. When the pump wears, and the shaft begins to wobble (which the all do, regardless of what type of impeller is involved), the composite pump will start to break up. The metal impeller pump will start machining metal off the front of the engine cases, both filling the cooling system with fine metal particles that are both difficult to get out, and clog off some of the many small diameter cooling passages, both reducing the pump flow, and creating hot spots in the engine which leads to things like cylinder head cracks. Once the metal impeller pump is removed, and all of the metal filings that can be removed are extracted using an arduous (read expensive) flushing process, a new pump, regardless of the impeller type, will not flow as much coolant, leading to a permanently hotter running engine. We have seen the scenario play out multiple times on customers cars; there is an important reason Porsche used a composite impeller pump.......
  2. JFP in PA
    An interesting write up with one "minor" difference: the B90 system was designed to be able to replace the bearings without disconnecting or removing the hub carrier. Once the carrier is off the vehicle, it is far quicker to just use a standing bearing press. The B90 saves techs a significant amount of time by allowing your to pull the bearings with the carrier still in place..... We use it this way every day: How to use the B90 on a Porsche
  3. JFP in PA
    This is going to require several specific tests, you need to find out what the intake vacuum level is at idle and at an steady engine speed (around 2,000 RPM steady, not revving the engine) looking for a possible exhaust blockage, You need both low and high pressure fuel pressure readings, you need to check the cam and valve lift actuations for correct movements, etc. This type of problem requires sequential elimination of each of the possible fault causes listed in Loren's post.
  4. JFP in PA
    The car should not start that way; either someone has altered it or the ignitions switch is bad. If you have sludge in the filter housing, you have sludge in the engine.
  5. JFP in PA
    Without seeing it, that sound reasonable.
  6. JFP in PA
    Are you sure it is the line and not the fuel tank connection itself? Your 2004 has a fuel filter that is part of the pump assembly itself down in the tank.
  7. JFP in PA
    What scanner did you read that code with? Reason I ask is it comes back as a high exhaust gas temperature sensor.........
  8. JFP in PA
    If the stat is stuck wide open, reving the engine quickly increases coolant flow without any "throttling" effect of the thermostat, and temp drops below normal range.
  9. JFP in PA
    The thermostat sets the minimum temperature of the engine' if it is stuck open, the engine will tend to run cooler.
  10. JFP in PA
    +1
  11. JFP in PA
    Welcome to RennTech There is a small switch near the latch that closes and completes the circuit when the boot is opened; I'd start there.
  12. JFP in PA
    Welcome to RennTech With care, often yes.
  13. JFP in PA
    This exact problem was just discussed, with complete fix details and photos on the 986 Forum: http://986forum.com/forums/general-discussions/66146-need-everyones-help-pushed-front-drain-hole-grommet-through-hole.html
  14. JFP in PA
    Welcome to RennTech There is a specific thread area for recovering radio codes called "Lost Radio Code - post your request here"; I would suggest reposting there....
  15. JFP in PA
    I would also ask whose IMS retrofit was used; there are some replacements that are not as good as others...........
  16. JFP in PA
    No. The PST II is a Windows based system only and cannot be used on any type phone.
  17. JFP in PA
    I would start by removing the oil filter and cuttingt it open; if it is full of metal, you will need to drop the engine for further examination. If the cams are not rotating in sync with the crank, I would seriously doubt the news is going to be anything good......
  18. JFP in PA
    Correct on the cam plug location. An oil drain is not necessary, with the engine off there is little oil in the cylinder heads. If the chains have failed, the engine will not run, and even turning it over would result in bent valves, and the engine would not be able to complete one rotation. These are interference engines, meaning that if the valves are not opening or closing at the correct time, parts start hitting and it is all over.
  19. JFP in PA
    If yours is a 2001 Boxster, pull the green plug on the exhaust side of the head on the passenger's side and rotate the engine by hand (clockwise ONLY) using the bolt in the crank pulley. When the engine is at TDC, the slot in that cam should be straight up and down in the plug opening. As the crank drives the cams via the chains, yes the crank would move if the chains were broken, but the engine would be trash as there would have been massive piston to valve contact. At that point, codes would be irrelevant.
  20. JFP in PA
    Tool 9637 is one of Porsche's Unicorn tools, it is called a pin out box for diagnosing electrical issues in the harness. These things cost a couple of grand, and the last time we looked the wait time to have the elves in the Black Forest build one for you was about two years. It is not going to be easy to find. The harness can be repaired, but with a couple of caveats: The wire gauge and colors should match for later diagnostic purposes, and the replacement should be soldered and heat shrinked, never crimped (low voltage sensor signals are very suseptable to line resistance, which is common with crimped connections). You can always swap the sensors, but as the code is specific to a harness issue, the code would not likely change. You would probably better spend your time jury rigging the wiring harness electrical tests looking for the short.
  21. JFP in PA
    Not really sure about the switch part number; I can honestly say I have not seen one without a number, but then I have only see a few of them total. But I am still focused on the point that when you purchase the wheel as a kit from Porsche, it comes with a switch, which may mean the switch itself is different for the multifunction wheel. You would need to talks to a Porsche parts department to confirm or deny that.
  22. JFP in PA
    Codes are probably related, but the P0343 is often more a wiring issue than a replacement: P0343 Camshaft Position Sensor 1 – Above Limit Potential causes: – Short circuit to B+ Check the connector/wiring. Check signal wire from DME control module, pin III/20, to CMP sensor for short circuit to B+. 1. Connect special tool 9637 to wiring harness (DME control module connector). 2. Remove connector of CMP sensor. 3. Connect voltmeter to special tool 9637, pin III/20, and ground. Switch on the ignition. Display: 0 V If battery voltage is displayed, check wiring harness for chafing and pinching damage.
  23. JFP in PA
    Looking at the photo again, you might be correct, which would explain why the car has no codes (the sensor is still connected electrically but not mechanically). If that is the case, the part is a $5 "support", 99634137103.
  24. JFP in PA
    Call Sunset, tell them which side you need (although I think one fits both sides) and they will confirm what you need.
  25. JFP in PA
    That should be correct. If Sean is on his game, he should have asked you for your VIN to verify that is the most current part (their system is always more current than what we have out in the field).
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