Question about Volvo 740

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I am not getting fire from spark plugs. the coil has power to it. and i can not find the crank sensor location.

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The crank sensor on certain models can be located on the bellhousing of the transmission just behind the engine usually on the driver's side. What year and model is this one?

Posted on Nov 10, 2010

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2 Answers

Im not getting fire to the coil plug I've already replaced crank sensor


there are several reasons for no spark
cam position sensor , immobiliser problems, faulty ignition module
run the fault codes to see exactly where the problem may be

Aug 07, 2015 | Cars & Trucks

2 Answers

Im getting no fire to my spark plugs on my 85 Dodge caravan with the 2.6L Mitsubishi engine


Could be one of the following no power coming into the coil or no signal from crank sensor. The vehicle I just got done working on is a 97 caravan with no spark because of no signal from crank sensor

Apr 05, 2015 | 1985 Dodge Caravan

1 Answer

I have power to the coil and to the injectors, but no spark to plugs.


No year, make or model. The ECM controls the spark by grounding the coil/s. It uses the crank sensor to determine the spark to cylinder needing fire. No fire would point me to the crank sensor and wiring to it.

Nov 30, 2014 | Cars & Trucks

1 Answer

Have a 1986 chevy celebrity tec4 an have no fire from coil ive replaced coil checked fuses an have power going to coil still no fire


ignition will trigger if signal from crank sensor, with hei spark plug tester ,read to coil wire and spark plugs wire if spark , depends wich engine
if c3i coil and module the module could be the problems you can check it before replace
hope it helps

Mar 29, 2014 | 1986 Chevrolet Celebrity

1 Answer

Customer stopped to get gas and car wont start. checked and has no fire


sounds like your ignition coil or control module are shot. Either can cause this problem.
If all plug wires are dead, no spark, and the module has power and ground suspect crank angle sensor. Of course sensor will break opon removal from engine block 4Cyl but in VA NAPA sells the sensor for $9.00. On the distribitorless system the crank sensor, module, and coils are all piggybacked in the same location, back of engine and is very difficult to service. When I was working as a auto tech we had allot of trouble with crank sensors and ign coils.
Before you jump to any conclusions. If your starter is cranking the engine at a normal speed(use your judgment), and you preformed all test for spark, such as pulling wire off spark plug and connecting positive end of volt meter into plug, and negative end to ground, you should see a definite deflection on an analog meter. All test and still no spark. DON'T forget to check your fuses and fuseable links in the starting and charging system. THIS must be done first. 50% chance, this is where your problem lies.

Oct 27, 2011 | 1994 Chevrolet Cavalier

2 Answers

I have an audi 500sel 93 manual AAH Engine, no fire to the plugs, car refuses to start. checked computer box, 2 crank sensors, modulator, the coils all tested okay and fuel coming to injectors ok. timing...


We will star a list of what is good.and what controls spark
1. crank sensor .you done it
2.ignition control module. located on the center of bulkhead,behind intake air hose
3.coils. you tested it.
4.ECM located under passenger side foot well

ECM no you got fuel,so lets leave it out
cranksensor okay you replaced it
ICM ignition control moduel.
no spark you cover everthing. has to be a loose or no contact connection somewhere, you covered it all.you might want to tap on the ecm., or check the fuse for power to junction the ones in the hood area those can blow and not give power to ignition system

Apr 28, 2011 | 1993 Audi 90

2 Answers

Spark plug in cyl. # 4 is wet and saturated with gasoline . does not seem to be firing . engine is running extremely rough . I cannot see under intake manifold to get to spark plug wire . is removal of...


i`m assuming this is a 4 cylinder motor.no you don`t take the intake off to get to the coils.you can get to the coils from under neath the car.have you checked to see if the plug wire is allowing spark to the plug itself.if its only #4 getting wet then the plug could be defective as the coil that fires #4 also fires #1 cylinder.its rare that the coil will fire one side and not both.(it does happen though).there are 2 coils at the back of the motor that sit on the ignition module.you could have a bad ignition module also.the crank sensor is attached to the ignition module on the motor side and the sensor sits in the motor and if you have to remove the module be careful that you don`t brake the crank sensor when removing the unit a the sensor gets brittle from the heating and cooling of the motor over time,also the sensor seal gets stuck in the bore.

Apr 14, 2011 | 1994 Buick Century

1 Answer

I GOT NO FIRE ON THE PLUGS


The spark gets power to spark from coil packs.If the connection between coil pack to spark plug is weak or loose then it will not fire.But if the coil pack as well as the connection between coil pack to spark plugs checked ok then its faulty or dirty spark plugs.Clean the spark plugs with the carb cleaner liquid and let it completely dry.Then check.Also check the voltage between coil pack to spark plugs.If both checked out ok then the other possibility can be weak crank shaft sensor. Thanks.Helpmech.

Nov 12, 2010 | 1995 Dodge Dakota

1 Answer

No fire to spark plugs in a 1989 Plymout Acclaim


possible crank sensor. withour the crank sensor it doesn't know when to fire the spark plugs.


good luck

Jun 25, 2009 | 1989 Plymouth Acclaim

2 Answers

I cant get spark out of the coil pack


cam sensor fires the injectors to synchronise injector pulsing with the spark at the spark plugs.. U need to probably change the crankshaft sensor (around the crank pulley) as the crank sensor is what controls the ignition spark.
hope that does it.
:)

Jan 20, 2009 | 1996 Plymouth Voyager

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