Question about 1983 Volvo DL

1 Answer

Volvo '83 GL, 320k mi, 4 banger Spark = Good 25 amp Fuse = fine Fuel Pressure = Good Cylinder Compression = Good Timing might be slightly off, but not by much (going to recheck this tomorrow) Plugs = Good Battery = Good Cranks but won't start. wtf, fml.

Posted by Anonymous on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 693 Answers

Where are you checking spark? It could be the coil pac going out. If turnning over very freely and fast there is not enough compresion. Good luck hope this helps some.

Posted on Mar 23, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

It run badly when cold once warm it runs ok. I have replace coils. Plugs and fuel fliter. The codes are. P300 p301 p302 p303 p304 misfire help please


Is it a 4 cylinder engine, and all four cylinders are misfiring?

Misfires will set a code when the computer senses a lag in power output from a cylinder, based on the input from the crank position sensor. Misfires are usually caused from a loss or a problem with gas, spark, or compression-one of those three is wrong for a misfire to occur. New coils and plugs, so probably not a spark problem-unless the spark timing is wrong-let's leave that for now. You should have the fuel pressure tested, and see if pressure is as specified. If pressure is low, and you have new filter, probably a weak pump.

Check cylinder compression as a last resort. Your lowest reading cylinder should be within 75% of the highest reading cylinder. A compression test is a good indicator of the internal health of the engine, the higher the compression, the more power output from that cylinder. But it should be even and balanced, lowest should be within 75% of the highest reading.

So, gas, spark, or compression?

Mar 10, 2015 | Cars & Trucks

1 Answer

Spark plugs getting wet from fuel, compression ok, not starting, timing ok, spark ok, new spark plugs, changed fuel pump in tank,


Check fuel pressure regulator. The actual pressure with a gauge the clean injectors. I'd double check the timing. It also can be the throttle body. Only so many fuel problems the take a good look at the distributor. Small crack or bad wire gives off spark but might not be enough small 4 cylinder for their pecission motors need to be precise check fuses and main busses those are easy and cheap fixes

Jan 01, 2015 | Mitsubishi Cars & Trucks

1 Answer

Volvo 960


There are three things needed for an engine to run:
  • Fuel
  • Spark
  • Air (Compression)
If the car shut down suddenly without prior warning, and if the engine cranks over very fast (seemingly faster than normal), then my first guess would be a broken timing belt. This is bad because not only did you lose compression because the timing belt keeps the valves in sync with the pistons, that very fact means that the breaking of the belt most likely did internal damage to the engine in the form of bent valves. The very first thing you should do is to pull the plugs and do a compression check of the engine. If the cylinders are not all at the same level of pressure (within reason), or there is little or no compression in one or more cylinders, then the timing belt is gone. If compression is good, then the issue is either spark or fuel. Ensure spark is available by using a pair of insulated pliers to pull off one of the plug wires and hold it near the engine block. Crank the engine and watch for spark from the wire to the block. If there, you have spark. If not you must troubleshoot the cause. Fuel can be easiest or hardest to determine. Most vehicles have electric fuel pumps. Most have a "prime" function that occurs when first turning the key to the ON position. This allows the pump to bring the fuel rail to pressure for the injectors. Without starting the engine, turn the key to "ON" listen for a 3-5 second humming noise. This would be the fuel pump priming the fuel system. If you hear this you should have fuel to the rail. If you don't check the rail for fuel availability,.

Aug 23, 2014 | 1996 Volvo 960

1 Answer

Why is my 2003 gmc v8 envoy skipping & shaking


You are misfiring. If you have Autozone (or similar) research your check engine light, they will come up with one or more of the following codes P0300, P0301, P0302, P0303, P0304 etc. etc.P0308. The P0300 code refers to "Random/Multiple misfires" whereas the other codes refer to that particular cylinder (last digit) misfire. The P0300 code sets when 2 or more cylinders misfire (can be the same 2 over and over, but it takes at least 2 cylinders to misifre to set that code. The others only take one misfire to set the code. Now that you know what is happening, here is how to fix....
Takes all to fire a cylinder (Fuel, Spark, Air & Timing) properly. If you have random or multiple misfires, it is likely something that is COMMON to all cylinders - like the air intake/throttle body area - throttle body can get carbon buildup and not open/close properly. Check the fuel pressure to the fuel rail(s), fuel filter clogged? When you turn your key to the "ON" position, do you hear the fuel pump turn on (whine) and then shut off? No whine, means no fuel pump. Check all fuses and fuse relays related to the fuel delivery system. Check the distributor cap/rotor for any signs of carbon tracking/arcing. Do you have good spark from coil? Check wiring for the Camshaft Position Sensor/Crankshaft position Sensor for timing issues. Finally, check compression on all cylinders. Need good compression for combustion to take place.

For a single cylinder (example Cylinder #2) - Easiest to check is spark. Pull the plug and look at it. Is it wet and smell like fuel? If so, then swap it with cylinder next to it. If the problem moved, then its the plug. If the misfire is still on Cylinder #2, then swap the plug wire (both ends). If the misfire is still on Cylinder #2, then swap the coil. (see where this is going?) If the plug is dry, then check the fuel injector for operation. Noid light tester or you can get a long screwdriver and stick one end on your ear and the other on the injector - it should make a steady, rhythmic clicking sound if it is functional when caricon1.png is running. No sound? Replace. Is the plug oily? Check cylinder #2 for compression. No compression or little compression means either head gasket blown or bad/sticking valve (intake or exhaust) = big money to get fixed. Timing on one cylinder is hard to test without correct test tools. Timing is likely not a problem on a single cylinder misfire. Good luck.

Apr 22, 2014 | 2003 GMC Envoy

1 Answer

Cadillac allante problems


Takes all to fire a cylinder (Fuel, Spark, Air & Timing) properly. If you have random or multiple misfires, it is likely something that is COMMON to all cylinders - like the air intake/throttle body area - throttle body can get carbon buildup and not open/close properly. Check the fuel pressure to the fuel rail(s), fuel filter clogged? When you turn your key to the "ON" position, do you hear the fuel pump turn on (whine) and then shut off? No whine, means no fuel pump. Check all fuses and fuse relays related to the fuel delivery system. Check the distributor cap/rotor for any signs of carbon tracking/arcing. Do you have good spark from coil? Check wiring for the Campshaft Position Sensor/Crankshaft position Sensor for timing issues. Finally, check compression on all cylinders. Need good compression for combustion to take place. Your old fuel injectors were probably OK. Using a multimeter, check the resitance of a new one versus an old one - probably close in readings.

For a single cylinder - Easiest to check is spark. Pull the plug and look at it. Is it wet and smell like fuel? If so, then swap it with cylinder next to it. If the problem moved, then its the plug. If the misfire is still on Cylinder #2, then swap the plug wire (both ends). If the misfire is still on Cylinder #2, then swap the coil. (see where this is going?) If the plug is dry, then check the fuel injector for operation. Noid light tester or you can get a long screwdriver and stick one end on your ear and the other on the injector - it should make a steady, rhythmic clicking sound if it is functional when car is running. No sound? Replace. Is the plug oily? Check cylinder #2 for compression. No compression or little compression means either head gasket blown or bad/sticking valve (intake or exhaust) = big money to get fixed. Timing on one cylinder is hard to test without correct test tools. Timing is likely not a problem on a single cylinder misfire. Good luck.

Apr 21, 2014 | 1991 Cadillac Allante

1 Answer

Crank over but wont start


First thing I would do is check the basics, verify you have adequate fuel pressure by hooking up a fuel pressure gauge to your fuel rail assembly, next after you have verified thats ok check if you have spark going to your spark plugs, remove one of the spark plugs and hook a spark tester up to the spark plug wire, observe as your cranking the engine around if you see a spark on the tester or not, next if that passes you may have a cylinder compression problem, remove all spark plugs and perform a cylinder compression test, if all the cylinders seem to have low or no compression you have a valve timing issue, check and see if your timing belt is in proper time with the timing marks or if the belt is connected and has not broken, if you have a no spark condition check and verify your ignition module is getting 12 volt battery power with a test light, if you have 12 volts there next look into the crankshaft position sensor make sure the ohm resisitance is within the proper spec for your vehical if thats not correct replace the sensor with a new unit, finally if you find you have no fuel pressure check the fuel pump relay and fuse and verify there both ok if you find these to be both good, you more then likely have a bad fuel pump and that will require removal of the gas tank for further inspection of the pump assembly....

Dec 10, 2010 | 1998 Chrysler Sebring

1 Answer

Ive got a 2001 vw jetta 2.0 that died while driving and will not start. The starter engages but engine is not firing at all. Ive tested the starter which is good. I removed a spark plug & while still...


do you have compression on every cylinder? that may be your problem, that's the suggestion i'll make. pull each spark plug one at a time and do a compression check to make sure you have compression. if you don't have the tool, they are not that expensive to purchase. hope this helps you out!! although, if you do this test and it's good compression, i would lean more towards it could be out of time. meaning it could possibly have jumped time but you said the belt was good, it could have jumped a tooth or two which would mean a no start also.

Aug 23, 2010 | 2001 Volkswagen Jetta TDI

3 Answers

I have a 1997 GMC Jimmy, 4.3 v6, i have replaced timing chain


fuel pressure regulator it is located on the spider pump behind the throttle body

Feb 13, 2010 | 1997 GMC Jimmy

2 Answers

WHAT MAKES SPARK PLUGS FLOODED WITH PETROL .ITS GOT SPARK ,


The fuel isnt being burned so it remained liquid & quietly collkected on the spark plugs. Clean & dry the plugs & try a few drops of oil in the cylinders to restore compression. It just may work. If that doesn`t do it then either the plugs are not producing enough spark to ignite the fuel, the cylinder compression is not sufficient for combustion, the spark timing is incorrect, or the air fuel ratio is way off. Your need to determine which is the case and why. You may want to start with a spark tester that will test for sufficient firing voltage ( cheap tester can be bought at any parts supply store for a few dollars). Then check cylinder compression. If the compression is low you should perform a cylinder leak down test to determine why the compression is low. Finally, if you have good spark, good compressoin, and the timing is ok then look for a really big vacuum leak caused by a stuck open EGR valve or a newly ruptured brake booster diaphram.

Jan 25, 2010 | 1997 BMW 318

1 Answer

NO COMPRESSION ON ALL CYLINDERS - TESTER GAUGE GOES UP THEN DOWN


The fault may very well be with the tester itself: The compression tester should have a check or "HOLD" valve which causes the needle on the gauge to REMAIN at it's highest recorded point. For example, my 1993 Isuzu Rodeo had a compression of 160 psi. The gauge "holds" the needle at the measurement UNTIL THE VALVE IS RELEASED-(mine had a button that needed to be pressed to release the pressure) then there will be a slight discharge of the pressure contained within, the needle should drop back to zero, and THEN you should be able to remove the tester. What I am getting at is if the pressure drops that fast, I think the "HOLD" valve on it may be defective, OR the tester is not properly sealing on the combustion chamber (stripped threads?). Might be worth buying another one for 20$ just to be sure.

A four cylinder engine, you say? Very rarely will you have ALL of your cylinders exhibit the same pressure loss symptoms. How did the other three cylinders test?

Here are the components required for a running engine to fire:
1-good spark (adequate voltage, good plugs/wires)
2-dedicated fuel supply (fuel pump with adequate pressure)
3-timing (slack in timing chain/belt?)

If the timing belt broke or maybe even jumped a tooth or two, it COULD cause DAMAGE to your engine-pistons hitting valves-if it IS what they call an "INTERFERENCE" engine.

Hope this helps.

Dec 31, 2009 | 2001 Hyundai Sonata

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

126 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

78267 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...