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Thread: My cabby is acting strange. Should I be concerned?

  1. Member Jay401's Avatar
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    04-29-2012 05:12 PM #1
    Okay so i have a 87 cabriolet, and I'm not sure if this behavior should concern me.

    So when I get home or to where ever I'm going I always make sure it's in nutueral and my parking break is on and I turn off the car. Now I'd say every one out of ten times I turn it off and it sputters and almost like stalls. As if I popped the clutch or something. But it does turn off. Now whenever this happenes the next time I start the car it takes a little longer than usual to start up.

    Should I be worried? Is my cabby warning me of impending doom?!?! Or is it just because it's an old car and i drive it a lot?

    Thanks for any feedback.

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    04-29-2012 05:20 PM #2
    So after you shut the key off it starts to sputter and shut off?
    dink and flicka

  3. Member Jay401's Avatar
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    04-29-2012 05:23 PM #3
    Quote Originally Posted by hyperlightboards48 View Post
    So after you shut the key off it starts to sputter and shut off?
    Yup. Like instead of turn right off it's like it fights it.

  4. Member briano1234's Avatar
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    04-29-2012 05:38 PM #4
    Sound suspiciously like a injector that is dribbling.

    Star with the basics, ie: Timing, look for vacuum leaks...
    Then progress to leaky injectors....
    Grounds, Grounds, Grounds Replace them things.
    Divorces, Great Coffee, and Electrics, all start with GOOD Grounds.

    Where are my grounds ?

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    04-29-2012 05:41 PM #5
    Sounds like the car is dieseling... I had this problem with a 4 wheeler i know its completely different but on my quad it was due to carbon build up. I would try cleaning the fuel distributer and seafoam the intake.

    I may be completly off on this so someone correct me if im

    When was the last tune up? plugs, wires, idle screw oring, injector seals and so on?
    dink and flicka

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    04-29-2012 06:01 PM #6
    Timings advanced, whens the last time she had a new timing belt ?

  7. Member Jay401's Avatar
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    04-29-2012 07:13 PM #7
    Quote Originally Posted by Beetle.freak View Post
    Timings advanced, whens the last time she had a new timing belt ?
    I think it was at 60,000 miles in the 90s lol. She's at 128 now.

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    04-29-2012 08:25 PM #8
    I always do mine around 50-60k...I'd check the timing with a timing light and see if its off.

  9. Member Jay401's Avatar
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    04-29-2012 08:56 PM #9
    Quote Originally Posted by Beetle.freak View Post
    I always do mine around 50-60k...I'd check the timing with a timing light and see if its off.
    Thanks for the advice. I will check the timing, makes sense that it would be the timing.

  10. Member Jay401's Avatar
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    05-26-2012 12:48 AM #10
    Okay thought I would do a little update.

    That weird problem still seldom happens but now there's more...

    So my coolant level light started flashing under heavy acceleration so I decided to flush my coolant and replaced the thermostat, and hoses. I also did a oil and air filter change. After that the problem still exists, now most recently I've started to hear that infamous fuel pump whine under really heavy acceleration. So before I replaced the fuel pumps I replaced the fuel filter today. And no surprise the problem still exists. I tested the fuel pump relay and fuses both check out okay.

    Now here's the curve ball. When I'm accelerating my coolant level light flashes, my oil pressure goes crazy as well as my oil temp gauge, but i do not loose any performance. Is this normal when a fuel pump starts to die or might there be a underling problem I've over looked.

    Any help would be greatly appreciated.

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    05-26-2012 07:15 AM #11
    Is the ground strap connected from the coil mounting bracket to the back of the valve cover stud ? Check/replace the body to engne ground.

  12. Member briano1234's Avatar
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    05-26-2012 07:22 AM #12
    Under acceleration your coolant will recede a bit. If you are not running your coolant at the "max" mark then it is possible that you have a air bubble under your sensor.

    I would loosen your sensor an allow the coolant to fill the sensor tube, and possibly add coolant to your tank if it is under the max mark.

    I would also clean the Tips of your sensor with sandy paper to clean all the calcification off of the tips. They increase the resistance of the probes.

    I would replace the Battery to Frame, and the Frame to the engine/tranny grounds. You can buy new cables at a Autoparts store of your choosing. You will be buying a new battery to frame cable, and a new frame to frame cable (2 pieces). You can take a file and file the two ends that meet at the frame to get a flat fit. Clean the Frame stud after attaching the cables, I would spray them with a battery protectorant to eliminate the corrosion and or rust.
    Grounds, Grounds, Grounds Replace them things.
    Divorces, Great Coffee, and Electrics, all start with GOOD Grounds.

    Where are my grounds ?

  13. Member Jay401's Avatar
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    05-26-2012 10:59 AM #13
    Quote Originally Posted by briano1234 View Post
    Under acceleration your coolant will recede a bit. If you are not running your coolant at the "max" mark then it is possible that you have a air bubble under your sensor.

    I would loosen your sensor an allow the coolant to fill the sensor tube, and possibly add coolant to your tank if it is under the max mark.

    I would also clean the Tips of your sensor with sandy paper to clean all the calcification off of the tips. They increase the resistance of the probes.

    I would replace the Battery to Frame, and the Frame to the engine/tranny grounds. You can buy new cables at a Autoparts store of your choosing. You will be buying a new battery to frame cable, and a new frame to frame cable (2 pieces). You can take a file and file the two ends that meet at the frame to get a flat fit. Clean the Frame stud after attaching the cables, I would spray them with a battery protectorant to eliminate the corrosion and or rust.
    Thanks for the help. Do you know of any diagrams that I could use to find all the grounds?

  14. Member Jay401's Avatar
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    05-26-2012 11:03 AM #14
    Quote Originally Posted by Beetle.freak View Post
    Is the ground strap connected from the coil mounting bracket to the back of the valve cover stud ? Check/replace the body to engne ground.
    Yes I is connected but pretty corroded.

  15. Member kamzcab86's Avatar
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    05-26-2012 12:53 PM #15
    Quote Originally Posted by briano1234 View Post
    If you are not running your coolant at the "max" mark then it is possible that you have a air bubble under your sensor.

    I would loosen your sensor an allow the coolant to fill the sensor tube, and possibly add coolant to your tank if it is under the max mark.

    I would also clean the Tips of your sensor with sandy paper to clean all the calcification off of the tips. They increase the resistance of the probes.
    An '87 does not have a level sensor, only the temp sensor.

    I do concur: Replace the main ground cables, and clean the connections of the rest (go to your local hardware store and get a wire brush; the brushes are easier to use than sandpaper/files, IMO). Also clean the sensor connections (and, really, any other electrical connections that are dirty/corroded).

    http://www.cabby-info.com/electrical.htm#Ground

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  16. Member Jay401's Avatar
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    05-26-2012 01:30 PM #16
    Thanks Kam, will due.

  17. Member Jay401's Avatar
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    06-05-2012 10:28 AM #17
    So I guess I should do an update. Cleaned all the grounds and also found a vacuum line unplugged to what ever that thing near the distributor is. After that car ran like it was brand new.

    But a few days after that some one hit me and it's now totaled. Kinda ironic. If any one needs parts let me know. I'll probably be parting out soon.



  18. Member benrk's Avatar
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    06-05-2012 11:14 AM #19
    ouch, looks like you had a nice car there, my condolescence!

  19. Member s2kvondeutschland's Avatar
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    06-05-2012 01:12 PM #20
    Sorry about your car man, looked nice.

    But how much for the Recaros?
    It's 106 miles to Chicago, we got a full tank of gas, half a pack of cigarettes, it's dark... and we're wearing sunglasses.
    -Hit it.
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  20. Member Jay401's Avatar
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    06-05-2012 01:28 PM #21
    Quote Originally Posted by s2kvondeutschland View Post
    Sorry about your car man, looked nice.

    But how much for the Recaros?
    Trying to get a mk2 do might use them if not $300 for front and rears.

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    06-05-2012 01:48 PM #22
    RIP Cabby

    Glad you're ok though, cars can be replaced.

  22. Member kamzcab86's Avatar
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    06-05-2012 02:24 PM #23
    Quote Originally Posted by Jay401 View Post
    But a few days after that some one hit me and it's now totaled
    Cabby-Info.com -- Your online guide to the VW Cabriolets
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