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Engine won't continue to run!

Please advice! I just rebuilt this old Mazda taitan (SL), cpmplete overhaul done! It cranks ok and starts on spray of aerostart at air-intake and runs as long as aerostart is sprayed! Engine stops without aerostart! Fuel flowing fine via all injects, since pump also serviced! Note white exhaust! Really appreciate your help!

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  • 12 Answers

Sound like an air leak, too much air coming in kills engine, try spraying like starting fluid by and seals, or do a compressed smoke test

Posted on Apr 28, 2013

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Posted on Jan 02, 2017

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SOURCE: 1990 Mazda B2200 w EFI- Starts and dies

When you turn the key to the on position can you hear the fuel pump turn on? If not, the fuel pump relay has gone bad. Make sure you have at least 5 gallons of fuel in the tank. Check and make sure you have fuel flow to the rail, try cracking the banjo bolt on the fuel rail.

Posted on Jan 24, 2010

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SOURCE: BOUGHT TRUCK NOT CRANKING.

if you have the same problem with the engine Hot or Cold then it may be the cold start fuel injector in the throttle body / carb. may need to be cleaned or replaced.
may be chock and linkage

Posted on Apr 05, 2011

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I have overhauled engine for Isuzu bighorn 1998 petrol/gasoline engine. the 6VE1.timing belt is ok. Still it has a had start.


is this the Single head cam or twin version?
no photo of engine, so answers will be weak.

double posted. is this the single cam or twin cam engine?????? per side, the twin cam has 4 cams. 2 /bank.
i can not understand your questions, at all.
ok you overhauled the engine,
nor can i understand , still hard start.
does that mean it cranks slow and turn runs and drive perfectly ?
or cranks fast, but hard to start and runs perfectly?
or does that mean it cranks fast, starts, then misfires and runs crapppy-pappy?
hark, the devil really is in the details, no?

Generic answer.
all the wires and sensors , hoses not put back correctly.
oil full, coolant full, fresh gas in tank,
then you crank engine with no spark (I pull fuses)
and the crank it until oil pressure is good. yah, do that.

if really savvy, we check for top end oiling next. cranked only.


ok looks like oil pressure is good,(I don't want to wreck a new engine) (also check compression on a new engine, to see if we messed up., if not 150psi or more, you timed it wrong)



then we crank it, ok, it cranks and don't start
I check spark and it's timing using my timing light, it's wrong, i retime it, no and its ok. as is ..
ok sparks good, on all 6 cylinders. checked carefully and for static time.

so now start engine on test fuel,
if fails, see above for why.!
ok it runs for say 2-3 seconds and stalls. good.
We yell at the gas engine gods. O'BOY my engine seems to be OK ! progress....

next is fueling , ill stop now, as typing a book on fuel injection
is not easy here.
but fuel pressure is next. on all EFI engines. as is good fuel.
when did car last drive perfectly, 1 month ago,
10 years. what?
if long ago, the gas is bad. as are related parts all gunked up, like filters, and injectors.
and even the pump, or its sock packed in GUNK.
as you can see we have no history on the car, so.
really anything is possible. even vandalism.

btw we never just throw and engine in a car.
we check.:
1: compression, gee even sitting on a pallet.!
why install (6hr labor) a dead engine,?
2: then cranked oil pressure, spark/fuel off line.
same reasons.
3: then if all that is ok, I do check top end oiling now, if not any top end, the cams will not last very long. they will smoke and seize up in a flash.

this is how its done correctly, ask how.

Aug 20, 2016 | Isuzu Cars & Trucks

1 Answer

Why Engine management light wont go off after overhaul


check fuel pressure you said no fuel spray at injectors

Mar 23, 2016 | Cars & Trucks

1 Answer

Engine cranks but won t start


engine cranks but won't run may be caused by either fuel delivery or ignition issue. are you sure when you had the motor rebuilt that the shop put the cam and crank on correct engine timing?

Aug 28, 2014 | Cars & Trucks

1 Answer

Volvo 2005 EC210 BLC Engine Crank but no start .display shows code 140SID and 250 9


It can be faulty fuel pump or clogged fuel filter or its issue with starter or battery or may be problem with sensors.There are few possibilities that can cause these problem,there are few help links provided related to these issue. Click the link below and refer the troubleshooting procedure to solve the problem:-----
Engine cranks but will not start? http://technoanswers.blogspot.in/2012/02/engine-cranks-but-will-not-start.html
-------- Landcruiser prado won't start http://technoanswers.blogspot.com/2012/10/landcruiser-prado-wont-start.html ------- 2007 ford expedition engine cranks but wont start http://technoanswers.blogspot.com/2012/10/2007-ford-expedition-engine-cranks-but.html

--------
: Engine Cranking Fast but not Firing up? http://whatisbyme.blogspot.in/2012/05/1999-lexus-gs300-engine-cranking-fast.html

----------
1997 Oldsmobile Cutlass Ciera: The Engine cranks but not start? http://schematicsdiagram.blogspot.in/2012/04/1997-oldsmobile-cutlass-ciera-engine.html

-----
Mazda MPV cranks but will not start? http://technoanswers.blogspot.com/2012/01/mazda-mpv-cranks-but-will-not-start.html
-------- MAZDA MPV WILL CRANK BUT NOT TURN OVER TO START? http://technoanswers.blogspot.com/2012/01/mazda-mpv-will-crank-but-not-turn-over.html
--------- Vehicle Cranks Fast but Won't Start http://whoisbyme.blogspot.in/2012/07/vehicle-cranks-fast-but-wont-start.html

------
How to test Crankshaft Position Sensor? http://fordrepairhelp.blogspot.in/2012/03/how-to-test-ford-focus-crankshaft.html

---------
These details will help,keep updated for more help.

Oct 16, 2012 | Cars & Trucks

1 Answer

Engine won't start


If you have spark at the right time, compression, and fuel, you should have combustion.
Was it running before you had the work done ?
Is it possible the distributor timing is off ?
You know for sure the plugs are firing, not just the coil ? And the accel pump in the carb is spraying gas ? And the choke is closed ?
A major vac leak like the PCV valve hose or intake gasket could keep it from starting.

Jul 06, 2012 | Dodge Cars & Trucks

1 Answer

2002 saturn sl won't start, turn over but won't start


If the engine fires up for a second or two with starting fluid then the fuel pump is weak.I would check the fuel pressure and if its not within the specs then replace the pump and filter.

Jan 26, 2012 | 2002 Saturn Sl

1 Answer

1997 mazda 626 won't start.


Are the plugs wet with fuel?
Check for spark. No spark? it may be the ignition module.

Plugs dry and spark present? No fuel?Spray a little starting fluid and see if it will run on that.
Then check pump fuses and for fuel pump noise.

Jun 01, 2017 | 1997 Mazda 626

2 Answers

My Isuzu Trooper 2004 4JX1 turbo just underwent a general engine overhaul. Its cranking but will not start. All electricals are ok. Does the PCM needed to be reset for it to start?


The ECU will be fine with a engine rebuild but the 4JX takes a bit longer to start if all the injector oil paths are empty - can be up to 5 or 6 mins of 20 second cranking bursts.
Also if you rebuilt due to diesel in the oil from bad injectors the control valve for the injector oil pressure may be faulty so it wont start.

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1 Answer

1996 mazda mx6 ls cranks but won't start


you may need to run a wire from a keyed ignition source that has power while cranking and running to the fuel pump relay and bypass the pcm to test wether it will run, if it runs put a more permanent wire in place.Not too sure what tests youve done but it seems that fuel is what your focusing on so a quick test is too spray engine start up the intake tube to see if the engine trys to run if it does it eliminates a lot of other potential reasons for a no start condition.Also try squeezing the fuel return line to see if the added pressure will try to make engine run.Could be time to replace fuel pump etc anyway let me know how it goes good luck with it

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