Question about 1991 Buick LeSabre

1 Answer

No fire in spark plugs

We put new coil an crak sensor st gad same problema

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  • Buick Master
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Auto shutoff relay..

Posted on Dec 26, 2013

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Posted on Jan 02, 2017

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SOURCE: No firing contact to the spark plugs. Have already

Two things.
1. does your car have three seperate coils ontop of a module or is it all one piece? If it is the seperate coils you might wanna change the module that they mount to.
2. If its the all in one (magnavox) coil and you are sure all the parts you replaced are in working order then you might wanna have the timing chain checked. It may have broken and if the cam isn't turning you wont get spark.

Posted on Mar 19, 2010

  • 707 Answers

SOURCE: i have a 1990 buick

Hi,
Have you checked the ignition fuse(s) in the fuse box under the hood(should be 30 amp fuses)?
Start there, (maybe on the passenger side on the firewall, or on the drivers side (side or front of compartment). Sorry I can't find a diagram, but there should be a diagram under the lid. Then the ECM, Battery Power (if applicable). And main relay. Start with those. Also I think it might be worth checking fuses 1,2 and maybe 4 in the passenger compartment box.
Hope this helps you!

Posted on Nov 01, 2010

airjer995
  • 5332 Answers

SOURCE: I need to know the

Do you have a code for a misfire?

If a crank sensor goes bad the vehicle will typically not start at all.

If you have spark to all the cylinders than the next step is to either check compression or check the injectors. Usually the injectors will stick when this happens they will ohm out fine but will not spray fuel. To check them you will need either a high end scan tool or and injector tester and an fuel pressure gauge. The tester is connected to the injectors one at a time using the bulk connector near the alternator. The injector is then triggered by the tester as you watch for a drop in fuel pressure. Whichever injector does not drop fuel pressure when triggered is the bad injector.

airjer995_11.jpg

Posted on Nov 22, 2010

  • 2 Answers

SOURCE: no spark wont fire 1986 buick regal

If the starter cranks very fast when you are trying to start to check for spark, it is a possiblity that you have a busted timing chain. This explains the rapid sound of you starter engaging, because the crankshaft is not being turned and the camshft is not either therefore no spark is made.

Posted on Apr 21, 2012

george_karas
  • 220 Answers

SOURCE: no spark at plugs but spark at coil with new ign module and picku

check the carbon and the spring in side the distributor cup 2nd change the high tention lead from the coil to distributor 3th ignition on remuve the 2 wires from the coil check the curen 12 volts as + conect to the coil and 4th check the black wire is your - with test light then conect to the coil good luck.

Posted on Jun 04, 2012

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