Question about 2004 Volvo S80
Takes three things to make engine run gas,air, and compression. Plug code reader in get codes ..
Posted on Nov 20, 2014
Correction......... It takes four cycles for a four cycle engine to run...... Suck, Squeeze, Bang and Blow. 1. Air and fuel is introduced into combustion chamber 2. Compression with ignition from spark plug to ignite compressed air fuel mixture 3. (BANG!) Combustion where the power is made 4. Finally, exhaust
Check all fuses first, then make sure connection to ignition coil(s) is good. May need to pull a spark plug out and dry it off. Connect spark plug back to ignition coil but lay it out where you can see the tip of spark plug. Have someone crack engine for no more than three seconds and observe if there is any spark being emitted from the tip of the spark plug. Be sure to wear eye protection before performing spark test and not to be near spark plug when engine is being cranked. Trust me...... 80 KV's is quite a shocking experience! LOL! Also, make sure you have a fully charged battery before doing this as there is a significant voltage drop that can cause PCM not to function correctly due to below average battery voltage. If there is no spark, you might have a bad ignition module or possible a faulty crank sensor. If you do have spark, you have water in your gas tank in which I've seen this problem occur with people that had just filled up the other day from a water contaminated gas station underground tanks. Hope this steers you in the right direction.
Posted on Nov 20, 2014
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Posted on Jan 02, 2017
SOURCE: trying to put new spark
Assuming you have a distributer cap/rotor setup are you positive when the number 1 cylinder is at top dead center that the rotor is pointing to the number 1 wire? You could have the order right but the wires on the wrong spots on the distributer. Also, if the cap uses a seperate coil wire, ensure that the coil wire is in place both on the coil and the center of the cap. An easy way to avoid problems like this in the future is to replace the wires one at a time.
Posted on Jun 23, 2011
No. Remove the covers on the top of the heads(straight black covers, usually they say Volvo) and that should give you access to the spark plugs. Plug gap is 0.030".
Posted on Mar 26, 2010
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