Question about 1986 Cadillac Eldorado

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1986 Cadillac Problem

Had a garage install a new distributor cap and rotor now th Caddy over revs before shifting. It hangs up in low and second but if I lift my foot it sometimes will shift righ then. Whats wrong? Changing a cap and rotor should'nt have anything to do with shifting should it?

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There is a "throttle valve" cable located on the throttle linkage of the carburetor that may have been reset or left unhooked when you had it serviced. Check to make sure it is connected to the throttle link.
Also behind the carburetor there is a vacuum line connected to the intake manifold that goes to the transmission vacuum modulator, they may have knocked it loose or the hose cracked.
Check it out and let me know.

Posted on Mar 08, 2009


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Vw caddy 54 reg wont start when cold new battery new starter new ignition switch new relay fitted starts at 6 degrees and runs just don't like cold

What year is your car ? Does your car have a distributor ? If yes, have you replaced distributor cap and rotor ? Have you performed a complete tune up ?

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Regarding the caddy that at operating temps will cut off while has two codes: 52 and 53 distributor ?

Start by replacing the pickup coil in the distributor, AND replace the distributor cap and rotor.

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I owned a similar 1986 caddy

12 Volts on pink wire to dist with key on

The top of the cap is the HEI Ignition Coil

Inside dist is the pickup coil (no crank sensor)
& ignition module with the 3 or 4 wires

Maybe the module failed- if you have no spark
at plug wires

Mar 14, 2013 | 1987 Cadillac DeVille

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My distributor cap fell off whiole driving, and truck quit. the rotor was also off, as both screws had fallen out that hold it on.. My son installed them about two years ago. Mabe screws were not tight in...


I understand your problem, and I will try and give you the best advice here of what to do.

Yes, most likely when your son installed the distributor cap/rotor the screw might have been stripped some or just loose. And yes over a period of time they can work them self off, mostly because the rotor itself is the moving part. The distributor itself if screwed down correctly does not move, but the rotor inside of course does move.

The best way to solve this, and to make sure this works correctly, is to purchase a new distributor cap and rotor, reason for this is, then the screw will be new and do not have to worry about possible stripped where rotor tightens down. It is possible he might even cross threaded them, which is still better off to buy new rotor and cap (they normally come with the screw if not , have them match them up to fit) Just need to give like AUTO ZONE, the make, model, engine and they can hook you up. Now I realize you can use old cap and rotor, but problem is this, because it came off and so forth, why take the chance of the rotor or cap getting banged up, and then will could have some electrical issues, sense there plastic and only takes a small hairline crack to cause problem. best to replace both and then secure down snug. Almost any garage, or a friend that has a couple screw drivers and some knowledge can do this for you for like a cold beer. I hope this helps you, and I think this will be a easy, low cost solution. Thanks Mike from Fixya.

Aug 30, 2011 | GMC K3500 Cars & Trucks

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1986 4.1 where is #1 plug and #1 tower on dist?

Turn the crank over with the distributor cap off

You only have two choices TDC or BDC so pick
TDC & see where the rotor points

If you removed the distributor I will look it up tomorrow

I recall the #1 Plug is at the front left side of engine by

Jul 17, 2011 | 1986 Cadillac DeVille

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How do I install a rotor into the distributor in a 91 cadilac deville

remove distributor cap 4 screws push in and turn1/4 remove cap 2 screws remove rotor watch how it comes off install rotor put cap back on 1/4 turn on

Mar 05, 2011 | 1991 Cadillac DeVille

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My 1986 toyota 2wd pick-up truck has no spark at the coil, the guys at auto - zone tested the coil for resistance and it check ok. the rotor turns when I crank the engine, what else should I check.-

Hello i can assist you. Hello your ignition module will cause a no spark you find your module under your distributor cap.You will see two wires go into your distributor shaft these will connect to your pick up distributor module.To remove and replace this part you will need to unscrew the distributor cap lift off and remove retaining screws on the module once you have removed this replace it with your new module reinstall your distributor cap and start.

Dec 30, 2010 | 1986 Nissan Pickup 4WD 1986

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How to replace an ignition rotor to a 1988 Ford Escort

Your vehicle may be equipped with either of the following ignition systems, depending on the year and engine combination:
* 1981-82 1.3L and 1.6L engines: Dura Spark II Ignition System
* 1982-85 1.6L Non-EFI and 1986 1.9L Non-EFI engines: Thick Film Ignition I (TFI-I) System
* 1983-90 1.6L EFI and 1.9L EFI engines: Thick Film Ignition IV (TFI-IV) System

  1. Disconnect the negative battery cable.
  2. Remove the distributor from the engine.
  3. Place the distributor assembly on a workbench.
  4. Remove the two TFI ignition module retaining screws.
  5. Pull the right side of the module down the distributor mounting flange and then back up to disengage the module terminals from the connector in the distributor base. The module may then be pulled toward the flange and away from the distributor.
Do not attempt to lift the module from the mounting surface, except as explained in Step 3, as the pins will break at the distributor module connector.

To install:
  1. Coat the baseplate of the TFI ignition module uniformly with a 1 / 32 in. (0.8mm) of silicone dielectric compound WA-10 or equivalent.
  2. Position the module on the distributor base mounting flange. Carefully position the module toward the distributor bowl and engage the three connector pins securely.
  3. Install the retaining screws. Tighten to 15-35 inch lbs. (1.7-4.0 Nm), starting with the upper right screw.
  4. Install the distributor into the engine. Install the cap and wires.
  5. Reconnect the negative battery cable.
  6. Recheck the initial timing. Adjust the timing, if necessary.

Hope helps.

Sep 10, 2010 | 1988 Ford Escort EXP

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Plug wires to distributor rotor

Hello Macstff ;

1985 jaguar xj6 4.2 L Series 3
Firing Order 1-5-3-6-2-4
# 1 Spark plug at the last cylinder next to the firewall .
# 6 Spark plug at the front of th Engine nearest the fan .

The Rotation of the Rotor within the distributor cap is " Counter Clockwise

The Vacuun Advance Diaghram ( metal ) is more in line with the # 3 Spark plug wire .

Looking from the top near the Passenger side fender . If we know that the Number 3 Plug is more inline with the vacuum advance then moving " clockwise the next plug would be the # 5 and after that would be the # 1 plug

This shold get you on your way providing that nothing else has been tampered with . I hope that this has been helpful to you .

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86 mercury sable stalling and surging

Hi,sound like a bad (tps , trotle position sensor, Good Luck

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