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Re: Engine constantly stalls/lack of power.hard to start
Sounds like the fuel pump is failing. Take it to a local parts store that will read any codes. WRITE THE CODES DOWN if there are any, and report them back here for further help.
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AutoCodeshttps://www.autocodes.com > p1391_dodge
Engine Light ON (or Service Engine Soon Warning Light) · Lack/Loss of Power · The engine may be harder to start · The engine may stumble or stall.
It sounds like there are multiple issues with your Isuzu KB 240 LE. A powerless engine and stalling can be caused by a number of issues, including:
Fuel Delivery: If the fuel pump is not delivering enough fuel to the engine, it can cause a loss of power and stalling.
Ignition System: If the spark plugs or ignition coils are not functioning properly, it can cause a loss of power and stalling.
Mass Air Flow Sensor: A faulty mass air flow sensor can cause the engine to run lean, resulting in a loss of power and stalling.
Vacuum Leaks: A vacuum leak can cause a loss of power and stalling.
Throttle Body: A dirty or clogged throttle body can cause a loss of power and stalling.
Engine Control Module: A malfunctioning engine control module can cause the engine to lose power and stall.
Fuel Injection System: A clogged fuel injector or a failing fuel pressure regulator can cause the engine to lose power and stall.
It's recommended to have the vehicle professionally diagnosed to determine the root cause of the problem. The diagnostic process may involve checking the fuel and ignition systems, performing a vacuum leak test, checking the throttle body, and possibly scanning the engine control module for codes. Once the issue is identified, the necessary repairs can be made to restore proper engine performance.
Hi. It would be useful to get a code read and some live data from a decent diagnostic tool. There are quite a few possible causes including, pressure in tank - if the fuel tank can't vent pressure then a vacuum will eventually form stopping fuel getting to the engine, this will cause it to loose power and stall. Then after a few mins the pressure will drop and the process start again, easy test is when the car stalls remove filler cap - if that's the fault there will be an audible hiss and the car will start up again.
part blocked exhaust will have same problems but will more generally cause a lack of power and acceleration.
are there other symptoms? i.e only when conering or only when pulling off or stopping, engine light on/off. Jon
Immobilizer is shutting the car down most likely. Try a different key see if it happens to the other key or bring it to volvo and have them get a new key for it. And have them check the anntenna for the immobilizer. The immobilizer system will shut the car off if it does not sense the correct wireless signature from the key, after a few seconds. You can take the key out of the ignition then reinsert it, try again see if it starts.
More common problems not volvo specific:Plugged fuel injectors maybe, turbo controller problem maybe. Or an ignition control module problem after it heats up. Hard to tell.
I used to have that same exact model and year of car and it had a turbo controller problem that would only be noticeable if at high altitude, 5000ft or above and engine under significant load( climbing a long hill) the engine would surge up and down constantly. Replaced the turbo controller and it was fixed.
Does it start better after sitting overnight? Is it missing at all? Check engine light? Hard starting could be fuel pump, also lack of power could be lack of fuel. If it starts better after sitting overnight, could be block catalytic converter. That would also explain lack of power. If you have to hold gas pedal half way down trying to get speed would explain why it is not going into overdrive. Hope this gives you some direction.
Inspect and clean IAC valve (idle air control valve), replace if necessary. If IAC is Ok, please provide additional info!! Does your vehicle experience random or repeated hard starts?? Is your "service engine soon" light on?? These vehicles are known for faulty crank position sensor, usual symptoms are: hard starts, random/constant stalls, SES light on, misfire or no start. Some or all symptoms may or may not occur simultaneously.
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