Question about 1990 Cadillac SeVille

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Diagram of the ignition module on a 1990 cadillac

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Remove dist cap. rotor you will see it under the part the rotor attaches to. It has wires on both ends looks like } .and held in with two screws

Posted on Sep 24, 2009

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I keep getting a trouble code e-41 in my cadillac deville, the car run but misses real bad, dies out at most inopportune times was told was cam sensor, where can i buy a new sensor?


The code is for a missing cam signal, but your car uses a distributor instead of cam and crank sensors.
The problem may be the ignition module located inside the distributor.

Apr 20, 2013 | 1990 Cadillac Deville

1 Answer

Were do I find the crankshaft sinsor on my 1990 Cadillac sedan deville 4.5 fwd.


1990 Cadillac Deville, and you want the crank position sensor, The 1990 cadillac used a distributor with a ignition module, It also used a coil pick up, if you have no spark trouble shool the distributor11_12_2012_6_31_00_am.jpg11_12_2012_6_31_01_am.jpg

Nov 11, 2012 | Cars & Trucks

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My 1990 Cadillac Seville says (starting disabled,anti-theft system. wait 3 minutes then start.)But still does not start.


You may have a failed ignition lock cylinder The wires that are attached to the lock cylinder are probably broke therefore the resistor value of the key pelet is not getting to the theft system module there fore without tha signal the car will not start. to repair the car will need a new lock cylinder and at least one new key

Aug 23, 2010 | 1990 Cadillac SeVille

1 Answer

Cranks but wont start


check for spark and fuel
if there is no spark but has fuel then the ignition module may be bad
if there is fuel but no spark then the fuel pump may be bad
if you have both then may be the ignition lock cylinder ( if it has the chip on the key )

Mar 08, 2010 | 1990 Cadillac Deville

1 Answer

I have a 1990 cadillac deville, it was running great and one day just would not start! Any Ideas why? Neutral safety switch has been checked and replaced also computer, new battery, and the ignition...


If you're saying it turnes over but doesn't start I think of two things. If it is not getting power to the spark plugs I think it is the ignition module inside the distributor(small black box on bottom inside). If it is getting power to the spark plugs I would check the fuel pressure. If no or little fuel then fuel filter and or the fuel pump.

Jan 20, 2010 | 1999 Cadillac DeVille

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1990 cadillac deville vacume line mix-up


You can find these vacum diagrams in dealer level emission manuals, or in some Hayes publications, which are avaliable at most public libraries.

Jun 20, 2008 | 1990 Cadillac Deville

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