Question about 1980 Cadillac Eldorado

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I can't get any spark for my distributor on my 307 Olds engine. I have replaced everything from pick up to the cap, still no spark. Whats next?

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What about the igition module?

Posted on Nov 15, 2009

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Posted on Jan 02, 2017

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I have a 1999 Tahoe 8 cylinder I put in a new coil a whole new distributor distributor cap still it will not start


Pull the coil wire off the distributor cap. Put a ***** driver in it and place it close to any metal on the engine. crank over the engine. If you have spark, replace the pick up coil/ignition module in the distributor. If you have no spark. Check for power and ground at the coil plug with engine on. If it is there , replace the crank sensor.

Apr 18, 2016 | Cars & Trucks

3 Answers

I have a 1993 chev pick-up v6 4.3, i just installed new spark plugs,new plug wires, distributor cap and rotor button.All plug wires are back in the right position,and i used the firing order 1-6-5-4-3-2...


This diagram is for 1998-1995 Chevy 6 cylinder 4.3L engines.
Your got the firing order exactly correct, at 1-6-5-4-3-2, but here's the thing to double-check:
The distributor rotation is clockwise (note badly rendered arrow in picture).



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Since you probably got everything right, then you're left with really unusual/rare causes of
failure of the ignition system:
(a) rotor button misaligned/failing to make contact?
(b) rotor button not pressed onto distributor shaft far enough therefore failing to provide correct
proximity to distributor cap contacts when coil fires
(c) coil wire or contact loose/disconnected - press coil wire firmly down into distributor cap.
(d) distributor shaft of other damage caused during installation of rotor.
(e) spark plug wires defective from factory
(f) spark plugs defective from factory
(g) battery low - may need a charge to start
(h) ICM (ignition control module) failure - hook up your HEI (high energy ignition) tester, and
watch the quality of the spark on each cylinder.
(i) fuel problem? If spark is being properly delivered, its gotta be a fuel problem...
(j) distributor cap not screwed down flush to top of distributor? maybe just on one side?

Inspect the inside of the distributor cap - if there are lots of little metal bits all over the inside
of the distributor cap, then you know you have a misalignment of some type in there, and the
rotor and cap are destroying each other. normal operation will throw a quota of spark-ed off
metal bits inside the distributor cap, but since your cap is brand new, your attempts to start
the engine should have rotated the distributor so few times, you should see no metal debris.

Inspect the distributor cap contacts to see if any spark marks are more of less in the middle
of the cap's proper "contact zone". If not, you've diagnosed an internal misalignment, which
you know how to correct.

Sep 14, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

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

1 Answer

96 dodge dakota,with a 318 motor will not start,not getting spark. could it be a pick up coil, and how do you test a pick up coil?


Hi, Hope I can help you.
I do not know how you have checked for spark, but lets start from the beginning.
Lets start with an ignition systems check.
1. I want you to remove the high voltage coil wire. ( That's the wire in the center of the distributor cap.) Using a good pair of insulated pliers. I want you to hold it about 1/4 inch from a good engine ground. Now you will need a bit of help from a partner. Get them to turn the key and crank the engine. You should see a bright blue and well defined spark. Ok, If you have spark I want you to slowly move the coil wire away from the engine ground. As you do this I want you to pay attention to the coil tower. (The coil tower is where the other end of the coil wire is attached.) What your looking for is arcing and sparking at the coil tower. If this happens then you need to replace the coil with a new one. If this does not happen then your coil is working fine, and we will have to move on.
Note if you do not get spark from the coil wire replace the coil.

2. Ok if you have spark now we have find out if the spark is making it to the spark plugs. How are we going to do this? By checking the rotor, distributor cap, spark plug wires and spark plugs.First lets remove the distributor cap. This will allow use to inspected the rotor and the distributor cap. What your looking for is, cracks, carbon tracks and wear at the tip of the rotor. On the distributor ,look inside the cap for cracks, carbon tracks and wear on the terminals. If you find any of this replace the distributor cap and rotor. ( Note if you have any doubt of the condition of the rotor or the cap replace them.) Next lets check your spark plug wires. Lets pull off one of the spark plug wires from the spark plug side. Now inspect the wire connection for a white crusty powder. If you find crust replace your wires. Now you should check all of them the same way, but if even one has corrosion replace them all. You are going to have to inspect the wire its self . Going down the whole length of the wire. Holes cracks burn Marks and other damage. Once again if you find any damage replace them all.
I hope this will help you and good luck to all the read this FixYa

Dec 18, 2010 | 1996 Dodge Dakota

2 Answers

My 90 geostorm fires when it wants to. have replaced all fuses n replaced coil checked and cleaned cap n roter extreamly frustrated whats up with it?


intermittent spark usually caused by failing ignition module in distributor cap, but first check air gap on pick up coil--should be 0.008-0.016 in. (0.2-0.4 mm). If air gap is good, replace module. If air gap is bad, adjust and see if problem resolves.

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Nov 29, 2010 | 1990 Geo Storm

3 Answers

I NEED THE DISTRIBUTOR CAP FIRING ORDER FOR A 1985 OLDS. CUTLAS V6.


1985 Oldsmobile Cutlass Salon 3.8 liter V-6

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Hope this helps.

Aug 17, 2010 | 1985 Oldsmobile Cutlass Salon

1 Answer

Need fire order,spark plug wires replaced in incorrect place


For several engines....

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Fig. 1: Buick-built 231, 252 V6 Engine firing order: 1-6-5-4-3-2 Distributor rotation: Clockwise


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Fig. 2: Olds-built 260, 307, 350, 400, 403, 455 Pontiac-built 265, 301, 350, 400, 455 V8 Engine Firing Order: 1-8-4-3-6-5-7-2 Distributor rotation: Counter-clockwise


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Fig. 3: Buick-built 350 V8 Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise


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Fig. 4: Chevrolet-built 267, 305, 350 Firing Order: 1-8-4-3-6-5-7-2 Distributor rotation: clockwise


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Fig. 5: Chevrolet-built 262 Firing order: 1-6-5-4-3-2 Distributor rotation: clockwise


Hope helped with this (remember rated this help) Good luck.

Nov 05, 2009 | 1985 Oldsmobile Delta 88

3 Answers

Replacing spark plug wires on a 1981 cadilac eldarado. I m confuse where the wires go. i need diagram for replacing the wires. Its the 8-6-4 engine


Not sure what you mean by 8-6-4 but this will help you. Pick the correct one for your application:


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GM (Cadillac) 250 (4.1L) V8 .GM (Cadillac) 273 (4.5L) V8 .GM (Oldsmobile) 307 (5.0L) V8 .GM (Oldsmobile) 350 (5.7L) V8 w/EFI.Engine firing order: 1-8-4-3-6-5-7-2 .Distributor rotation: counterclockwise


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GM (Cadillac) 368, 425, 472, 500 V8.Engine firing order: 1-5-6-3-4-2-7-8.Distributor rotation: clockwise



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GM (Cadillac) 429 V8.Engine firing order: 1-8-7-2-6-5-4-3.Distributor rotation: clockwise

Oct 06, 2009 | 1980 Cadillac Eldorado

2 Answers

Whats included in a 120k maintance


This almost always if different depending on the shop you take you car to. The best way is to look in your owners manual, pick your diving conditions, normal or extended use, and see what Mistubishi recommends. Should be at least, oil change,rotate,brake inspection, air filter, spark plugs, plug wire set, timing belt. On a Mits with over 100k miles I always recommended Distbutor cap and rotor, Transmission flush(for auto), Induction flush.

Jul 13, 2009 | 2003 Mitsubishi Eclipse Coupe

1 Answer

Carb loading up and engine surges at idle


I called an old mechanic friend who confirmed what I suspected. The engine control module which controls timing was the culprit. I replaced the defective unit, and the car runs like new.

Nov 17, 2008 | 1986 Oldsmobile Cutlass Supreme

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