Question about 1990 Cadillac Deville

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1990 Cadillac Seville won't start.

Gets no spark to spark plugs

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  • Cadillac Master
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Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

---------

This will help.
Thanks.

Posted on Mar 13, 2012

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Posted on Jan 02, 2017

GregorySH429
  • 30 Answers

SOURCE: 1991 cadillac seville will not start

first disconnect the battery and wait ten minutes this will dis able the battery. then get a manual there are several small parts that need to go in a certain way. and for the guy that his car starts then dies sounds like your exhaust system is plugged, simple test disconnect the exhaust just before the catalytic converter and start the engine see it still dies. and the problem isn't even close to the same

Posted on May 11, 2009

  • 188 Answers

SOURCE: my 1990 cadillac seville is running rough changed

I have had this problem. if the spluttering start at a certain point on the fuel gauge. and when you fill it up it goes ok. then the fuel pump in the tank is breaking down. because when it gets to a level the pump has to work harder to pull up the fuel. however if it happens at any level of petrol that can be muck in the tank. or muck in the filler cap key hole. some cars breath through there. clean it in boiling water. now for muck in fuel try AMITECH products sludge remover. $8 or so. first . or you could try taking the pipe of the carbaretter and blowing air back into the tank. blasting away muck from pump it will not hurt it. might go for a while. failing that drain the tank and clean out with sludge remover. the other thing it could be is a slight hole in the tank. probably not. or a relay that gets hot.test relays do air thing try sludge remover and boil petrol cap before spending any money. use the air line that fills the tyres but take off pettrol cap first. just a little blast will do. few things to try there. hope it helps or you have to drop the tank clean it and change fuel pump. and thats expensive. liz

Posted on Mar 26, 2009

honeymokey
  • 3113 Answers

SOURCE: my 1991 cadillac seville will not start

Get a new cylinder put old key with chip in it. Find orange wire from old lock cylinder at bottom of steering column just under dash. Disconnect and connect new wire from new lock cyl. Get a copy of the old key for the old lock cylinder {no chip needed} to start car. Hide or mount new lock cylinder hidden under dash. Remove chip key to activate theft system.

Posted on Apr 15, 2009

  • 115 Answers

SOURCE: how to change fuel pump 1990 cadillac seville

The fuel pump and sending unit is located in the tank. I hope your tank is empty, if not you will need to siphon it out. It is dangerous with the gasoline, and remember the fumes burn, not gas. You start by removing the filler hose, then loosen straps, detach sending unit wire and fuel line, then lower tank. Then unscrew the sending unit/pump and replace. reinstall.

Posted on Jul 05, 2009

  • 1 Answer

SOURCE: cadillac seville won't start

I've got an even cheaper and easier solution, instead of buying a new cylinder, find that plug and snip the orange wires going to the old cylinder.Then remove the resistor chip from the key and solder each of the the wires to each side. this will fool the car into thinking the correct resistor chip is in place, allowing you to use the original key or any copies with or without resistor chips. i just did this to my caddy and it roared to life! :)

Posted on May 20, 2010

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1 Answer

How do you get the spark plug wire shield off of a 1990 Cadillac 4.5 litre engine


Some cars have a plastic snap/finger and loop locking arangement that needs to be undone so you can open the plastic "tunnel" that plug wires are routed through. A picture of what you are dealing with would help as there are so many different cars and designs.

Hope this helped,
Ken C

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1990 Cadillac Seville won't start. Is it the electronic control module?


Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

---------

This For spark plug problem, click the help links provided below: ---
Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

------------
How to Replace Spark Plugs?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-spark-plugs.html

-------------
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http://howtobyme.blogspot.com/2011/12/car-crankshas-spark-but-will-not-start.html

------------------------
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http://schematicsdiagram.blogspot.com/2011/06/spark-plug-firing-order-for-car.html

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How to gap spark plug ? http://technoanswers.blogspot.in/2012/02/how-to-gap-spark-plug-on-chevy-impala.html

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Spark plug Replacing for?

http://technoanswers.blogspot.in/2012/02/spark-plug-replacing-for-chevy-impala.html

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How to identify number one spark plug on the distributor cap?

http://schematicsdiagram.blogspot.com/2011/12/how-to-identify-number-one-spark-plug.html

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http://schematicsdiagram.blogspot.com/2011/12/how-does-spark-plug-wires-go-on.html

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Spark plug Firing Order Diagram?

http://schematicsdiagram.blogspot.com/2011/12/2006-suzuki-forenza-spark-plug-firing.html

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This will help.
Thanks.

Feb 19, 2012 | 1990 Cadillac SeVille

1 Answer

1990 cadillac seville leak repairs


first get a gallon of degreaser like purple stuff from a parts store and clean throughly with a water hose. Be careful not to get the distrubitor too wet. then look for leack while on the groung

Aug 08, 2009 | 1990 Cadillac Deville

1 Answer

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HAVE YOU CLEANED YOUR SPARK PLUGS?? a bad wire can do this too. try changing the wire

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It might be the fan relay switch. When the car gets warm check to see if the fan comes on.

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