Logan

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  1. Like
    Logan got a reaction from Bruce Nunnally in 94 deville camshaft position sensor location   
    On the Northstar the camshaft position sensor is on the passenger side end of the rear cylinder head. No where near the oil filter housing. See attached pic. 
    Do you really mean crankshaft sensors? There are 2 on front of engine....kinda near the oil filter housing. 
    You do have the Northstar and not the 4.9L engine right? 
     

  2. Like
    Logan got a reaction from Bruce Nunnally in 18018429   
    It's not really up to the dealer to find a part or solution for a 25 year old car. 
    Anyway....there is a site that shows a short list of dealers that may have one.
    http://oemcats.com/oem-parts/18018429.html
    Don't hold your breath on that list....but may be worth checking. 
  3. Like
    Logan got a reaction from Bruce Nunnally in HELP WONT START   
    Assuming the battery is not original, old, weak or worn out.....sounds like the car might have a parasitic drain....so a computer,  module or relay may be staying turned on and draining the battery.
  4. Like
    Logan got a reaction from BodybyFisher in Rough Idle on reverse, Drive and sometimes at stop.   
    It really could be anything right now....
    DI engines are kind of known to carbon cake the intake valves. 
    I have 3-4 DI cars here and have never had the carbon problem that I'm aware of.
    I guess we are offering ideas on what it could be. 
    Pretty sure you will need a scan tool to see any engine data....one of the parameters would show the fuel pressure. No way to hook up a gauge on a high pressure system. Pretty sure you will not find a fuel filter. 
    You might find this link helpful..
    http://www.underhoodservice.com/direct-injection-diagnostics-taking-pressure-readings/
     
     

  5. Like
    Logan got a reaction from BodybyFisher in Scared of Northstars!   
    Go look up 2003-2008 Toyota 2.4 L head bolts. Huge problem...typically the back 3 bolts (firewall side) pull up...Toyota has moved on. 
    Those use the same M11 x 1.5 thread. Not that there is anything wrong with that....just the same. 
    Your 2005 should be using a M11 x 2.0 thread. We do rent the Timesert kit for that. 
  6. Like
    Logan got a reaction from BodybyFisher in Dts rough idle   
    Which 3 coils and why those 3?
    You really need a scan tool that can display misfires. Most cheap scan tools will not. 
    Without being able to see which ones.....you are just guessing. 
    Attached is pic of a GM Tech 2 displaying the misfire graph. 
    Wifes Traverse just needed 2 coils on Sunday when she got home from out-of-town.....very clear to see on the Tech 2....2 cylinders with multiple misfires under load....one coil was noticeably worse than the other. To my surprise....took forever for the SES lamp to finally show a misfire code. (picture is old photo I have...not of the Traverse coils).

  7. Like
    Logan got a reaction from BodybyFisher in 94 cadi fleetwood brougham   
    I would of thought someone would have chimed in on this. Anyway, here is a link that has the codes..
    http://www.troublecodes.net/cadillac/fleetwood-5-7l/
  8. Like
    Logan got a reaction from BodybyFisher in Dash board cover 2001 deville   
    Remove defroster grille to get to upper screws. 
    Remove each vent to get to lower screws. 
     
     

  9. Thanks
    Logan got a reaction from BodybyFisher in TPS and ICM Question   
    They are the same thing. The IAC is just a computer controlled vacuum leak. There are several different ones used over the years.  The rest of GM has been using these since the mid 80s. Only Cadillac was using the throttle control motor one. When OBDII came along Cadillac finally started using IACs.
    Has the intake ever been off? 
    Could be cracked or leaking intake or intake gasket. Or leaking blow off relief valve. 
    Bad gasket on either side of the "crossover" part.
    Leaking fuel injector O ring. 
    Broken return spring on throttle body shaft or sticking cable. 
     
    *The leak can be on the underside the intake....which you could never find by spraying around up top. 
    Spraying around.....keep the spray liquid rather than vapor. If you find the leak the high idle will drop momentarily when you hit it with the brake/carb cleaner. ....and you should be able to repeat it every time you hit the leak. 
    As mentioned.....starting fluid is a little too wild for finding intake leaks. I think you will have better luck with brake or carb cleaner. 

  10. Thanks
    Logan got a reaction from BodybyFisher in TPS and ICM Question   
    The high idle issue is likely related to the the TBI being removed. Maybe wrong gaskets. ....Personally I use brake cleaner or carb cleaner to find vacuum leaks....IMO starting fluid is a little too dicey for spraying around. 
    Some codes will not set if other codes are present. 
    Its possible there are additional chewed wires. Or maybe a broken coil return spring on the throttle body shaft.
    Being a '96....the car will be using a IAC speed motor. Lacking a scan tool....There is a Kent Moore tool used to diagnose idle speed problems.  J-37027-A.
    With the tool...you unplug the IAC....the tool works as a IAC driver. You can cycle the IAC open and closed independent of the PCM.....very easy to change engine speed with the tool.  So if the IAC is cycled all the way closed (low)....and there is still high idle speed....there is a vacuum leak. 
    There is also a noid light that plugs into the vehicle side harness. The noid LEDs will blink green and red all the time to verify the PCM IAC drivers are ok and are trying to control idle speed. 
    The tool comes with 2 noid lights depending on which type of IAC you have....the square 4 plug version or the flat plug in version. 
    Most of the time I use the tool to pulse the IAC apart to clean the shaft. 
     

  11. Like
    Logan got a reaction from rockfangd in How to start a tight remanufactured engine   
    There is a range of timing adjustment for the distributor. 
    That range is often limited because of the vacuum advance and nearby obstructions. (intake manifold, firewall etc)
    If the distributor does not get 'timed' correctly with the engine.... within that range....you can get slow cranks. 
    So you may have to pull it out several times.....and mess with the drive gear slot... to get it timed in correctly with the engine.
    You really cant just drop the distributor in and crank it up. You do have to fuss with them a little to get it set up right.  
     
  12. Like
    Logan got a reaction from rockfangd in How to start a tight remanufactured engine   
    If the ignition timing is off it can do that. 
  13. Thanks
    Logan got a reaction from BodybyFisher in Mailbag: A/C on causes Overheating   
    I am certainly not the expert...
    The biggest snag is the crankshaft is different. 
    More details here about differences...
    http://www.northstarperformance.com/interchange.php
     
  14. Thanks
    Logan got a reaction from BodybyFisher in Problems with 2005 SRX hard to start after filling up with gas   
    Couple of years ago I had two completely different family owned GM products do this in the same month. Fill it up with gas....no start / very hard start.  One was a 2002 Saturn...other was a 2009 Traverse.
    It was the same problem on each.....a no code evap purge solenoid failure. 
    Pretty sure both were under the hood and fairly easy to change.
     
  15. Like
    Logan got a reaction from BodybyFisher in TPS and ICM Question   
    I think you need to poke around some more. 
    It won't be out in the open.....it will be wrapped up pretty good with tape....sometimes you can feel a lump in the wires. 
    Most will be sonic welded as shown. 

  16. Thanks
    Logan got a reaction from BodybyFisher in 1992 eldorado starter problem   
    I would be surprised if any replacement starter would come with the bracket.......just like alternators don't come with brackets either....
    A little bracket like that is a prime candidate for being tossed out....forgotten....or classified as "not needed".
    No bracket....good chance you would crack a starter every couple of months.. 
  17. Thanks
    Logan got a reaction from BodybyFisher in 1992 eldorado starter problem   
    All the same brand starter? Is the little (#3) bracket there? Picture is for a 4.9L. 
    https://www.knowyourparts.com/technical-resources/starting-and-charging/what-causes-broken-starter-nose-cones/
     

  18. Thanks
    Logan got a reaction from BodybyFisher in 1992 eldorado starter problem   
    Could be a flywheel issue such as cracking or ring gear damage. 
    He really needs to check the gap between the ring gear and the bendix. He may actually have to install a shim between the starter and the block. 
    If too tight...it can actually break the starter housing. 
    The starter housings are kind of designed to be sacrificial to some extent....it's a lot better to break a starter vs break the engine block if too tight. 
  19. Thanks
    Logan got a reaction from Marika in 2008 Impala LS flex Fuel Engine Question   
    There is one sort of.....but not like the old replaceable ones. 
    It's like a mat and is part of the fuel pump sending unit. Barring any problems (..diesel, dirt in tank etc..) it is suppose to last the life of the vehicle. 
    They also no longer have a fuel return line. 
    GM service manual fuel system description for 2008 Impala.
    The fuel system is a returnless on-demand design. The fuel pressure regulator is a part of the fuel sender assembly, eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the internal temperature of the fuel tank results in lower evaporative emissions.
    The fuel tank stores the fuel supply. An electric turbine style fuel pump attaches to the fuel sender assembly inside the fuel tank. The fuel pump supplies high pressure fuel through the fuel filter contained in the fuel sender assembly and the fuel feed pipe to the Fuel Injection System. The fuel pump provides fuel at a higher rate of flow than is needed by the fuel injection system. The fuel pump also supplies fuel to a venturi pump located on the bottom of the fuel sender assembly. The function of the venturi pump is to fill the fuel sender assembly reservoir. The fuel pressure regulator, a part of the fuel sender assembly, maintains the correct fuel pressure to the fuel injection system. The fuel pump and sender assembly contains a reverse flow check valve. The check valve and the fuel pressure regulator maintain fuel pressure in the fuel feed pipe and the fuel rail in order to prevent long cracking times.
  20. Thanks
    Logan got a reaction from Marika in 2008 Impala LS flex Fuel Engine Question   
    There is one sort of.....but not like the old replaceable ones. 
    It's like a mat and is part of the fuel pump sending unit. Barring any problems (..diesel, dirt in tank etc..) it is suppose to last the life of the vehicle. 
    They also no longer have a fuel return line. 
    GM service manual fuel system description for 2008 Impala.
    The fuel system is a returnless on-demand design. The fuel pressure regulator is a part of the fuel sender assembly, eliminating the need for a return pipe from the engine. A returnless fuel system reduces the internal temperature of the fuel tank by not returning hot fuel from the engine to the fuel tank. Reducing the internal temperature of the fuel tank results in lower evaporative emissions.
    The fuel tank stores the fuel supply. An electric turbine style fuel pump attaches to the fuel sender assembly inside the fuel tank. The fuel pump supplies high pressure fuel through the fuel filter contained in the fuel sender assembly and the fuel feed pipe to the Fuel Injection System. The fuel pump provides fuel at a higher rate of flow than is needed by the fuel injection system. The fuel pump also supplies fuel to a venturi pump located on the bottom of the fuel sender assembly. The function of the venturi pump is to fill the fuel sender assembly reservoir. The fuel pressure regulator, a part of the fuel sender assembly, maintains the correct fuel pressure to the fuel injection system. The fuel pump and sender assembly contains a reverse flow check valve. The check valve and the fuel pressure regulator maintain fuel pressure in the fuel feed pipe and the fuel rail in order to prevent long cracking times.
  21. Like
    Logan got a reaction from rockfangd in Eldo engine swap   
    This pretty much covers it...
    http://www.northstarperformance.com/interchange.php
     
    Dogbones were not used after 2000 except for Eldos....but the holes are there for the brackets. 
    Buried in the details.....a different crankshaft in 2000....."A new crankshaft with a different reluctor wheel (crank position wheel) is used"
  22. Like
    Logan got a reaction from rockfangd in Eldo engine swap   
    This pretty much covers it...
    http://www.northstarperformance.com/interchange.php
     
    Dogbones were not used after 2000 except for Eldos....but the holes are there for the brackets. 
    Buried in the details.....a different crankshaft in 2000....."A new crankshaft with a different reluctor wheel (crank position wheel) is used"
  23. Like
    Logan got a reaction from BodybyFisher in Running Rough   
    You can get access to the same GM info the dealers use cheap. ACDelco site offers unlimited use for 3 days for $20.
    https://www.acdelco.com/for-professionals/gm-service-information.html
    Fuse #29 has a lot connected to it...Also known as 'IGN 1' fuse.

  24. Like
    Logan got a reaction from BodybyFisher in Running Rough   
    You can get access to the same GM info the dealers use cheap. ACDelco site offers unlimited use for 3 days for $20.
    https://www.acdelco.com/for-professionals/gm-service-information.html
    Fuse #29 has a lot connected to it...Also known as 'IGN 1' fuse.

  25. Like
    Logan got a reaction from BodybyFisher in Cadillac Deville crank but no start   
    Curious.....does the serpentine belt look fairly new? 
    I've had a couple of serpentine belts fail in a new way....so much so there is one brand I won't use. They let go one of the outer 'strings' on the belt......the long broken belt string whips around knocking out sensors and wiring along the way. This can go on for a thousands of miles before being noticed.
    Maybe the cam sensor fell victim to this?  Maybe why he cannot see the sensor? It got wiped out by a bad belt? 
    Belt picture is from Google....not mine. The ones I've seen have only been one of the outer strings failed. 
    Northstar pic shows the cam sensor would be directly in-line for damage from a failing belt stringer. It also shows the cam sensor moved closer to the intake on the latter engines.