Question about 1989 Mazda 626

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Mazda 626 2.2L replaced head gasket,have compression of 120psi across all cyl, have fuel,spark turns over but no start checked timmming,marks #1 cyl up crank at TDC aligned on mark?

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I can think of two possible causes:
1 - Assuming you are getting spark at the plugs, the distributor may be reinstalled 180 deg off.
2 - Unlikely but - Assuming you are getting fuel into the cylinders, the fuel injector connectors were reinstalled improperly and are firing out of sequence. If you are not getting fuel into the cylinders, it's something else.

Posted on Dec 16, 2008

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I have a 2001 Chevy Malibu that over heated. Just got done replacing head gaskets and intake manifold gaskets still no start. I heard water flowing out of my exhaust! I have no idea why..


there could be coolant left in the exhaust. check spark and fuel. if you have spark and fuel, check compression. if you have spark, fuel and compression, it should start

Dec 11, 2015 | Cars & Trucks

1 Answer

Why is there a cylinder 2 misfire?


Check these three things in the misfiring cylinder: spark, gas, and compression. One of them is wrong or missing. For spark check the spark plug and wire. Make sure you have spark on the plug wire, a strong blue spark. For gas, the fuel/air mixture may be wrong. Does the fuel injector pulse, putting gas into the cylinder? Possibly you may have a leaking injector or a clogged injector.

If gas and spark seem okay, you need to check compression in the cylinder. Low compression will cause a misfire. If compression is 20 or 25% lower than adjacent cylinders, that could be causing a misfire. For example, say numbers 1 and 3 cylinders had about 150 psi compression. 80% of 150 = 120, so if cylinder 2 is 120psi or less, that could be setting the misfire code. Low compression can be caused by valves not seating well, or bad piston rings, bad head gasket- something in the combustion area of the cylinder is losing compression.

Aug 17, 2015 | 2006 Mazda Tribute

1 Answer

03 hondaCRV won't start


ok more info... good.
ok , compression is #1 , no amount of spark or fuel makes a dead engine good. (the 120 is low x4 but i bet you didnt do it WOT like the
instructions stated. most cars can do 150 easy. , all my 1.6L do 180.
the reason i ask is the cam belt slips after 50miles and all 4 jugs
drop from 180 to 120 or lower. so did you block the throttle open.
my wild guess is compression really is good and the belt never slipped. yet. (interference engine they are) all of them
so backup and read my post, did you check spark yet.

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Jan 09, 2014 | 2003 Honda Civic

1 Answer

My 2004 chevy malibu classic 4 cyl wont start its


There are four things required for an engine to run: air, fuel, compression and properly timed spark. If you have fuel and timed spark, the only two variables are air and compression. Air is not the likely problem, and compression should be good unless you blew a head gasket or the rings in all four cylinders. How did you determine that you have fuel and spark? Those are the two most likely problem areas.

Oct 10, 2013 | 2005 Chevrolet Malibu

1 Answer

Car wont start, replaced fuel pump. Now I havefuel to cyls, spark @ plug but no ignition, maybe flooded? Any ideas? Please?


you need to do a compression test on all cylinders. All cylinders should have about the same amount of compression with a minimum of 120 psi.
if there is a major drop of compression in a cylinder that means there is a malfunction in that cylinder(bad valve, broken rings, etc
if there is a major drop in compression between 2 cylinders then that means you have a bad head gasket.
if all cylinders read 0psi then you have a broken timing belt
If all cylinders read about the same then you need to check the timing and make sure the cam(s) and crank shaft are still at top dead center (TDC)

Nov 16, 2011 | 1995 Mazda MX-6

2 Answers

Compression are all @120psi, new timing belt .all timing mark cam or crank dead on,distributor on #1.all spark plugs has sparks from 1-4. all the fuses are good . you can hear the fuel pump goin .but still...


Do you have fuel pressure?

Have you tried spraying carb spray into the intake while cranking the engine over to see if it starts?

If it does than you have a fuel issue.

Dec 18, 2010 | 1999 Honda CR-V

1 Answer

I've been experiencing over heat problems with my 2003 honda crv. the temperature usually raises when i'm driving in an inclined or hills like roads. i have already over-hauled my radiator, i also had my...


Replacing a cylinder head gasket is a miss or a hit. In some cases, just replacing the gasket may work. But if the cylinder head is bend, dealer may ask to replace it, because "machined aluminum heads rarely works". In this case the cost may be more than $1000. It is a good idea to send the cylinder head for inspection, in a machine shop. They charge $150 for inspecting, checking, cleaning and if necessary machining the head.
If the timing belt will be replaced this is an extra cost. If someone will just replace the gasket, on a bend cylinder head, it is more likely to blow out again. This problem can be solved if the gasket be replaced properly, checking and taking care for the cylinder head too.
As the coolant warms up, it expands and for that reason you have two marks at coolant bottle. Down cold and up hot. It is normal for the coolant to overflow from coolant bottle, if it is filled to the upper mark with engine cold, way up the cold coolant mark. Let engine to cool down overnight and set the level at coolant bottle at the lover mark cold. If it will overflow again this is a bad sign. The pressure at combustion chamber varies from 75 in idle up to 150 or more in higher RPM. If the cylinder head gasket is blown, then gases are blown into the cooling system, increasing the pressure, the radiator cap pressure relief valve is open and coolant is discharged in the coolant bottle. In such cases it is common for the coolant bottle to boil. You can observe gases discharging in the bottle, mixed with coolant, from the cooling system. These are symptoms of a blown cylinder head gasket. Because you replaced it once, there might be a bad (bend, deformed) CYLINDER HEAD too.
To find it out you have to perform cylinder compression test on your car (PROFESSIONALLY).
1. Start with a normal ("static") compression test. To eliminate rings, valves, holes in pistons, that sort of things. A normal cylinder balance test is also helpful (so you know which, if any, cylinder is presenting a problem). Engine should be warm.
2. Put all spark plugs but one back in. Ground that plug wire to prevent module damage. Disconnect that injector on a port fuel system.
3. Put your compression tester into the empty hole. The test can be done without a Shrader valve, but most people recommended leaving the valve in the gauge and "burping" the gauge every 5-6 "puffs".
4. Start the engine and take a reading. Write it down
5. Now goose the throttle for a "snap acceleration" reading. Reading should rise. Write it down NOTE: Don't use the gas pedal for this snap acceleration. The idea is to manually open then close throttle as fast as possible while without speeding up the engine. This forces the engine to take a "gulp" of air.
6. Now write down your readings for at least the bad cylinder (if there is a single bad cylinder) and maybe 2-3 good ones. Make a chart like this: CYL STATIC COMPR IDLE -RUNNING COMPR - SNAP Cyl 1 150 75 125 Cyl 2 175 80 130 Cyl 3 160 75 120 Cyl 4 160 80 125
7. ANALYSIS: Running compression at idle should be 50-75 psi (about half cranking compression). Snap throttle compression should be about 80% of cranking compression.
Consult a professional with the readings. If the gasket is to bad, you may have very low compression at lease in one cylinder.
If you will get a positive confirmation for a bad cylinder head then you have two options:
REBUILD THE CYLINDER HEAD or REPLACE IT.

Nov 10, 2010 | 2003 Honda CR-V

1 Answer

We replaced the cylinder head with a used head all new gaskets now we have compression, fuel and spark but wont start. I am pretty sure the timing is right as we have checked it three times. Any tips????


When you checked the timing did you watch the valves? The crank turns twice for every turn on the cam. Turn the engine over by hand and watch the valves on the number 1 cylinder. When the intake opens and closes, the exhaust should start to open with a little more turning. This is top dead center. Line up you timing marks from here, it shouldn't take much turning. Then check your distributor to make sure the rotor button is lined up with the number 1 spark plug. Hope this helps.

Oct 26, 2010 | 1996 Mitsubishi Eclipse

1 Answer

NO start


Make sure you are getting gas and spark, they are a few ground wires that come off of injector harness that if they are not grounded will cause injector NOT to pulse re-check wiring and get back to me. Good Luck

Dec 11, 2008 | 1989 Mazda 626

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