Question about Dodge Cars & Trucks

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2006 Magnum 2.7l. It cranks, but why doesn't it start?

Replaced water pump oil change coolant and all gaskets. Reset timing and now it won't start.. got spark and fuel .. cranks and no start

Posted by D Johnson on

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2 Answers

old marine

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  • Dodge Master
  • 2,325 Answers

Because the water pump is driven by the timing chain, you obviously removed (or mostly removed) the timing chain. Having done this on the 2.7, I know it's very particular about the timing. A quick check to ensure your timing is correct is to do a compression test. It's pretty straightforward on this engine. If all your cylinders show good compression, it would give you confidence that your valve timing is correct. As Vernon Taylor suggested, you want to disable your fuel pump when doing this. Your coils will be removed, be sure they are disconnected.

Posted on Nov 27, 2020

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Vernon Taylor

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  • Dodge Master
  • 7,435 Answers

In order to start an engine needs...
A good cranking speed.
The correct timing.
Compression.
The correct amount of fuel delivered into the cylinders.
A good spark at the spark plug at the right time.

If you have all those things the engine will start and run - it doesn't start so one or more of those things must be absent. Engaging in a guessing game is pointless - only you can decide which of those is absent and rectify the problem.

If you have been trying to start it for some time and the injection system has been working there could now be so much fuel in the cylinders and ports it is unlikely to start.
When you have rechecked everything and found it ok, you might find it useful to disconnect the fuel pump and crank it for a while with the throttle wide open...

Posted on Nov 25, 2020

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5 Related Answers

Jonah Oneal

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SOURCE: I have a 1996 dodge neon the car starts for about

check power distribution center.if ok you have a faulty ignition component.

Posted on May 14, 2009

Mark Babineau

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SOURCE: 2006 Dodge Magnum keeps overheating

Observe the car's engine as it runs for 10 minutes to ensure that the electric fan for the radiator is coming on, if not either the fan relay, fan's coolant temp. sensor, or the fan itself is bad, try the relay first it is the least expensive, if this is the type of vehicle that has no electric fan replace the clutch fan.

Posted on Jul 29, 2009

Anonymous

  • 1 Answer

SOURCE: oil leak in my 98 mazda protege

Could be a rear main seal.

Posted on Feb 01, 2010

Anonymous

  • 196 Answers

SOURCE: REPLACED FUEL PUMP UNIT CRANKS TAKES ABOUT 10

upper 02 sensor run on a loop till the engine gets warm then it reads the sensor get you back on the road fast it will work better if the engine is warm when you take out the o2 sensor

Posted on May 04, 2010

Dennis Stockam

  • 73 Answers

SOURCE: Have a 1999 Kia Sportage

dose it backfire when you crank it over. if it dose your timing is off. If it dosent backfire when you crank it then look at all your wires and make shur you pulged ever thing in. and if you have one ground not hooked up that can cause a no start do you have fuel?
let me know and we will help more if needed

stockam auto

If you need further help, reach me via phone at https://www.6ya.com/expert/dennis_f849d3d6a68c6430

Posted on Jul 11, 2011

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