Question about 1996 Lincoln Mark VIII

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Idle my 1996 mark 8 idle too low about half gram,when i turn on the a/c it shuts off the engine----------can u help please??? dale

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  • lvjagain Apr 16, 2009

    95 Mark VIII when started cold idles at 400 RPM for about 2 minutes then idles normal. Under gentle throttle misses. Still getting 26MPG overall. Any help?
    lvjagain@netscape.net

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You need to change out the IAC valve and also the TPS sensor. The IAC is right beside the throttle body and is held in with 2 bolts. The Throttle position sensor is right on the back side of the throttle body and plugs in from the underside. Four 8mm bolts hold the throttle body down and will need to be removed to change both parts. Make sure to get a new TB gasket. This will fix your idle problem 100%.

Posted on Mar 07, 2009

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How do you adjust high and low on carburettor


not sure what you mean, idle? High idle usualy bend a rod to position the cam in the right place when engine is cold or with the choke plate held about 1/8" open and low idle is turn the idle screw with the engine warm. The screw rests high on the cam when cold and low on the cam when engine has warmed. you may find an index marking on the cam.

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2001 tundra low oil pressure at idel engine warms up what does line on gauge repersent in lb how to fix or is it normal 90,000 miles obit always did since m


Well according to the owners manual, anything from low up to the last mark is normal. I think they mean anything from the low mark up half way is normal for idle.
If the gauge stays near L at idle and while driving, you could have low oil pressure or a gauge problem. A mechanic would check pressure with a mechanical gauge.
Normal for most engines is around 25-40 psi at idle and 30-60 psi when driving.

Oct 17, 2014 | 2001 Toyota Tundra

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High Idle only on cold start up and Heater is on.


To find out information on engines idling high or low visit http://autorepair.about.com/od/enginetroubleshootin1/a/TS_idle-speed.html---------------------------------------------------------------------------------------
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Jan 09, 2013 | 1996 Subaru Legacy

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Ignition timing for 1989 toyota corrolla


1988-95 MODELS
See Figures 6, 7, 8, 9, 10 and 11
This service procedure is for setting base ignition timing. Refer to underhood emission sticker for any additional service procedure steps and/or specifications.
These engines require a tachometer hook-up to the check connector-see illustrations. NEVER allow the tachometer terminal to become grounded; severe and expensive damage can occur to the coil and/or igniter.
Some tachometers are not compatible with this ignition system, confirm the compatibility of your unit before using.
  1. Warm the engine to normal operating temperature. Turn off all electrical accessories. Do not attempt to check timing specification or idle speed on a cold engine.



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Fig. Fig. 6: Attach the tachometer to the battery and check connector terminals

  1. Connect a tachometer (connect the tachometer (+) terminal to the terminal IG- of the check connector) and check the engine idle speed to be sure it is within the specification given in the Tune-Up Specifications chart or underhood emission sticker.
  2. Remove the cap on the diagnostic check connector. Using a small jumper wire or Special Service Tool SST 09843-18020, short terminals TE1 (test terminal No. 1) and E1 (earth-ground) together.
  3. If the timing marks are difficult to see, shut the engine OFF and use a dab of paint or chalk to make them more visible.
  4. Connect a timing light according to the manufacturer's instructions.



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Fig. Fig. 7: Early type of check connector and SST tool (jumper wire) for base timing adjustment


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Fig. Fig. 8: Using the SST 09843-18020 or a jumper wire, connect terminals TE1 and E1 of the DLC1 (also used on OBD-II)


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Fig. Fig. 9: Ignition timing marks 4A-GE engine-note the small notch on the pulley, this is the mark to align with the degree scale


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Fig. Fig. 10: Timing marks 4A-FE and 7A-FE engines

  1. Start the engine and use the timing light to observe the timing marks. With the jumper wire in the check connector the timing should be to specifications (refer to underhood emission sticker as necessary) with the engine fully warmed up (at correct idle speed) and the transmission in correct position. If the timing is not correct, loosen the bolts at the distributor just enough so that the distributor can be turned. Turn the distributor to advance or ****** the timing as required. Once the proper marks are seen to align with the timing light, timing is correct.



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Fig. Fig. 11: If necessary, loosen the 2 mounting bolts and turn the distributor to adjust the timing

  1. Without changing the position of the distributor, tighten the distributor bolts and double check the timing with the light (check idle speed as necessary).
  2. Disconnect the jumper wire or Special Service Tool (SST) at the diagnostic check connector.

This jumper will be used repeatedly during diagnostics in later sections. Take the time to make a proper jumper with correct terminals or probes. It's a valuable special tool for very low cost.
  1. Refer to the underhood emission sticker for timing specification and any additional service procedure steps. If necessary, repeat the timing adjustment procedure.
  2. Shut the engine OFF and disconnect all test equipment. Roadtest the vehicle for proper operation.

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1 Answer

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The engine turns clockwise, the first mark is tdc (top dead centre) and the second mark is preset at 8 degrees so when using a timing light line up the second mark on the pulley with the fixed mark on the timing cover at idle

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Have a 96 chevy cavalier. replaced IAC,fuel pump assembly, fuel filter, tested and adjusted TPS but still haveing problem with car shutting off after about 30 mins of driving. Also once "warms" up during...


If your oil pressure gets to low it can turn off the fuel pump. This may also have saved your engine. The ECM turns on the fuel thru the fuel pump relay for about 5 seconds. When engine is running oil pressure sender supplies the voltage to the pump. When engine shuts off check oil pressure and voltage to fuel pump.

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I have a 1996 lincoln mk Viii, i was driving and the car went completely dead, I got a jump, made it home, lights kept going dim, so i figured it was the altenator, I replaced the altenator with one from...


you replaced it with one from the junkyard. Who's to say the car in the junkyard didn't have the same issue before it died? Anyway, the check engine light and low idle may be attributed to the fact that the ECM lost all power to it, and when the vehicle is running and ECM loses power, it will throw a check engine light. Also now the ECM will need to relearn it's idle and various other parameters that take a lil time. (15 miles or so) I would have the check engine light checked to see which code you have. Also make sure the air suspension is not leaking. That is the number 1 killer of alternators on mark viii's.

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I hope this may have helped,
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