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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-06-2007, 05:27 PM   #1
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Default thanks for the reposnse

i will check the spark plugs, do i have to check them all and how hard is tit to take em out?
also u mentioned injector pulse at the rail where do i find on this car?


thanks for your reply u guys are the best....
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Old 06-06-2007, 07:18 PM   #2
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Default hi can u help

hello again just wondering if any one knows where the fuel railline on a 91 bonneville i need to find the injector pulse at the rail, also how can i check if i'm getting spark without removing the sparks plugs or do i have to remove and check them from the engine>?\


please help me out

problem is car cranks but won't start at all could it be on of the pulleys that might if loosen it up and screwed the timing?
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Old 06-06-2007, 08:20 PM   #3
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An easy way to check for spark without taking a plug out of the engine is to use a spare plug. Unhook a plug wire from one of the front cylinders and connect it to the spare plug. Lay it on a metal part of the engine and have someone else try to start the car. You should be able to see a spark.
The only way to check the condition of your spark plugs is to take them out and look at them. Since you probably need to do that anyway, you can do the above described test with one of the plugs you pull out of your engine, or better yet, use one of the new plugs you are going to put in your engine.
I would check for the injector pulse by hooking up a volt meter to one of the injector wires while someone tries to start the car. If your reading spikes intermittently, I would say that it is pulsing. Just a guess.
You may also have bad plug wires. I test them by setting the multimeter to measure resistance. Check the resistance through the plug wire, making note of the reading. Make sure the meter leads stay connected to the ends of the plug wire and wiggle and bend the wire. If the reading changes a lot or reads infinity, that wire need to be replaced. All the plug wires should be somewhere close to the same reading, although longer wires will read higher resistance and shorter wires will read lower. It is best to replace all the plug wires at the same time, however if you are sure there is only one that is bad, some parts stores sell them individually.
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Old 06-06-2007, 10:23 PM   #4
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Default thanks bastard

hey man thanks again for you vast mechanical knowledge i hope it works i'll keep u posted.

thank you
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Old 06-07-2007, 11:10 AM   #5
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I believe this thread is an accidental break off of this thread:

http://www.bonnevilleclub.com/forum/...539&highlight=
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