Question about 1987 Dodge Ram 50

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Hooked up timing light to number 1 plug light will not work attached to the spark plug and wire..but it will flash when i hook it up to just the wire

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Of coarse. It is an inductive clamp, you put on the wire. Got to zero out light ,if you got that feature. Unless you dial in advance,and use that feature.

Posted on May 05, 2010


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Why does my 97 Mercury Grand Marquis run roughly after changing spark plug wires and core pack?

you must take it for a ride about 1 hour its scary but your computer has to adjust then it will pur good luck

Mar 31, 2015 | 1997 Mercury Grand Marquis

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Car willnot crank

this fix is going to be found by the process of elimination. as im sure you already know you need three things air, fuel and spark (yes you also need compression and proper valve timing but well get to that) start with air, its the easiest, simply check the air filter and all if any ducting to ensure are is making it to the throttle. next check to make sure your getting fuel. one easy test thats a little on the general side is to spray a small amount of starting fluid into the intake and give it a crank, if it tries to start or starts for just a second then fuel delivery is the issue. a better way to test would be to check for pressure, on a cam driven manual pump simply remove the out/flow hose and hook it up to a pressure gauge and crank the engine. on electronic pumps hook up a gauge to the service port and turn on ignition, ensure your getting the correct amount of fuel pressure for the application. net check for spark, you can pull a plug and and ground it out while cranking to motor and see if it sparks, or hook up a timing light to each plug and check for a pulse. now once youve gone through and ensure you have, air, fuel and spark the next issue to check is valve timing. first locate the number 1 spark plug wire terminal on the distributor, mark its position on the base of the distributor or the intake manifold, remove the cap and turn the crank by hand (youll need to pull all the spark plug wires) until it reaches TDC (compression stroke for number one cylinder) at this point the rotor should be pointing at the mark you made for number one terminal. if its not then your valve timing is out and you need a new timing chain. another way to check is pull the driver side valve cover and watch the valve move as you approach TDC. at TDC all the valves over number over number 1 should be closed, if not then valve timing is out and you need a new chain. now if all that checks out the next step is to check for compression. simply remove the spark plugs and screw in a compression tester, check each cylinder, youll want to double check the specs but in general some where between 150 and 200 psi is normal.

Mar 17, 2012 | 1986 Chevrolet Corvette

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I have an 1999 grandam with the 2.4..number 2 is flooding the clynder...changed the injectors and i still have the same problem...

Is it flooding the cylinder? or is the spark plug not firing? Those engines are notorious for bad coils and/or coil control modules.

Mar 13, 2011 | 1995 Pontiac Grand Am

1 Answer

Gasoline in one spark plug

Use a timing light to determine if the problem is the plug, or the wire. Hook the timing light to the suspicious wire, and see if there is spark, or if you don't have a timing light, stick a spark plug in the wire and turn the engine over to see if it sparks. If you have spark, then it pretty much has to be a faulty plug.

Apr 01, 2010 | 1993 Toyota Camry V6

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Check engine light flashes on 99 Ford Expedition, hooked it up to computer and says plug # 3 is bad, I replaced it but the light is still on

Try changing the #3 cylinder spark plug wire or all wires as you probabley have to buy them in a set.

Sep 10, 2009 | 1999 Ford Expedition

1 Answer

There is a air line supposed to hook up to the oil filler cap and goes to where? And also to check the timing where do you hook up the timing light and do you have to plug any vaccum hoses, also what is...

There's a rubber hose that goes from the oil fill cap to either the air cleaner or to the air intake hose between the air cleaner and the throttle body. It's for the PCV system. There's also a small filter inside the air cleaner on some models, and another hose and PCV valve that goes from the valve cover to the intake manifold. There should be a emissions system sticker under the hood some where that shows all the lines, and lists the specs for spark plugs and ignition timing. You hook the timing light to the #1 spark plug wire, disconnect and plug the vacuum line to the distributor. Set timing to 10 degrees BTDC.

Aug 19, 2009 | 1986 Ford Ranger 2WD

1 Answer

1976 Datsun 280z not starting but turning over fine

38 psi is high ??? MMmmm ..regulator... but you need spark check the coil make those plugs arc see them flash ....advance the distributor a lil just a inch ...

May 08, 2009 | 1994 Nissan Altima

1 Answer

My 97 gmc 5.7 wont start

You test fuel pressure by hooking a pressure gauge on the test port. It's on top of your engine, it'll have a cap on it. Looks like the valve stem on a tire, only not rubber. Best way to check for spark is with a timing light. Just hook it up and hook the pick up on any spark plug wire. Turn the engine over and see if it flashes. Or , if you don't have access to a timing light, hook a spark plug wire to a spark plug, and lay it somewhere on your engine where it can ground itself, and turn the engine over. Have someone watch the plug to see if it sparks. Best to do that in a shop where it is dark enough that you can see the spark.

Apr 29, 2009 | 1997 GMC Sierra

2 Answers

Number 6 cylinder misfire

That has to be either a bad plug in the number six cylinger, or a bad spark plug wire. First hook the scanner up and erase the code, then turn it back off. Check both ends of the spark plug wire and if they look okay, make sure they are firmly hooked back up.
Hook up the scanner and start the engine. If the code comes back, I would replace the plug at first, then hook your scanner up before the engine is running and erase the code. Then start the engine. If it comes back, then you know the spark plug wire is the culprit.

Note. If you erase the code and it doesn't come right back, don't be elated. It may take driving it a bit before it comes on again.


Jul 02, 2008 | 1998 Oldsmobile LSS

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