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Sprinter cranks but wont start?
sprinterguru
Member Posts: 24
in Dodge
If your Sprinter cranks but wont start:
1. Did you put gas in the tank instead of diesel?
2. If you have access to a DRB (Daimler scan tool) check fuel pressure. You must have at least 2500 PSI to start.
3. If no or low fuel pressure the nasty little culpret may be a 25 cent o-ring. The fuel pressure regulator is located at the rear of the fuel rail on 2002 to 2004 trucks. Its held in with two little torx head screws and can be a mother to get out. It's not terrible you just have to work by feel mostly. Remove the electric plug and the two screws, then pull the regulator towards the firewall and it will come right out of the rail. Inspect the o-ring and back up washer on the end of the regulator. If you have a split or tear in this o-ring you just found your problem. Replace the o-ring and reinstall. Dont let your dealer try to sell you the whole regulator for $300 the o-ring only kit is part number is 05175439AA.
4. If this is not the problem you may have too much fuel bypassing inside worn injectors. You need to run a fuel quantity test. I will post how to do this in a separate post.
1. Did you put gas in the tank instead of diesel?
2. If you have access to a DRB (Daimler scan tool) check fuel pressure. You must have at least 2500 PSI to start.
3. If no or low fuel pressure the nasty little culpret may be a 25 cent o-ring. The fuel pressure regulator is located at the rear of the fuel rail on 2002 to 2004 trucks. Its held in with two little torx head screws and can be a mother to get out. It's not terrible you just have to work by feel mostly. Remove the electric plug and the two screws, then pull the regulator towards the firewall and it will come right out of the rail. Inspect the o-ring and back up washer on the end of the regulator. If you have a split or tear in this o-ring you just found your problem. Replace the o-ring and reinstall. Dont let your dealer try to sell you the whole regulator for $300 the o-ring only kit is part number is 05175439AA.
4. If this is not the problem you may have too much fuel bypassing inside worn injectors. You need to run a fuel quantity test. I will post how to do this in a separate post.
0
Comments
diesel mechanic the van is running. Last dealer changed the hi and low pressure fuel pumps, one glow plug and the glow plug controller total $3600. The O ring you mentioned was broken and I believe this was the entire problem.
Now the van idles at 500 RPMs and runs hard but as soon as the RPMs raise to 700 it runs smooth and the dealer's mechanics do not know how to increase the iddle
speed. "PLEASE SPRINTERGURU HELP ME " I need to solve this problem. I need
to increase the idle speed and I believe the specs call for 800 RPMs.
I know we must communicate inside the forum but you can copy your response to:
<tadeo1_us@yahoo.com? Thanks.
Read my post on fuel injector injection quantity test, this is something you or someone mildly mechanically inclined can do easily. This will verify that your injectors are good and not bypassing too much fuel. Thats the first place to start.
Roy
Symptoms of a Faulty Mass Air Flow Sensor
A faulty mass airflow sensor will cause problems similar to low compression or low vacuum, and will also show symptoms similar to when your vehicle has low fuel pressure from a faulty fuel pump. Here are some of the most common symptoms of a faulty mass airflow sensor:
The engine is very hard to start or turn over
The engine stalls shortly after starting
The engine hesitates or drags while under load or idle
Hesitation and jerking during acceleration
The engine hiccups
Excessively rich or lean idling
If you believe your car has a faulty mass air flow sensor, take it to a qualified mechanic so that a complete computer diagnostic can be run. In most cases, a faulty mass flow sensor has a specific code that will generate during computer diagnostics, and is usually easy to determine with computer testing equipment.
How to Clean a Dirty Mass Airflow Sensor
Generally, you'll want to clean your mass airflow sensor either every six months, or every time you change your oil. Cleaning it when you change or clean your air filter will be a good way to save both time and money.
Remove the Sensor
To clean your mass airflow sensor, first, you must take it out. This is done by opening your vehicle's air box and using a flathead screwdriver to pluck it out. When removing the sensor, be sure to never touch the wires. A disconnected mass airflow sensor can't electrocute you, but the wires are delicate and small. Breaking one will require a replacement, which can run upwards of $100, so it's best to be cautious.
Clean the Sensor
Next, you have two choices. The cheapest option would be to take your mass airflow sensor and place it in a plastic bag filled with rubbing alcohol. Take the bag and move it around, making sure the alcohol washes all of the dirt and grime from the sensor. Another option would be to go to your local auto parts store and buy a special mass airflow sensor cleaner, and spray it onto your sensor, but as stated before, this is more expensive.
Dry and Reinstall the Sensor
After cleaning your mass airflow sensor with either the cleaner, or rubbing alcohol, let it sit, generally for 20 minutes or more. The sensor has to be completely dry before it can be reinstalled in your car, otherwise you may damage it. Replace it and that's all.
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Mercedes C280 E320 C36 AMG S320 SL320 Sprinter 2500 3500 Mass Air Flow Sensor
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I have an 04 sprinter that died on the road. It seemed like it was out of fuel. Had it towed to repair shop and they told me it needs the high pressure pump (Big bucks). Told them to hold off and brought it back to my shop. They told me their scanner said that was the problem.
I wanted to check out a couple of things. I changed the fuel filter even though I didn't think it was the issue. When I had the lines off I turned on the key to see if the low pressure pump was working and didn't get any fuel. I don't have a scanner but don't know who to trust. It's in OK shape but don't want to spend $2500 on something I don't feel it is. What do you think?
02 Sprinter no power at the injectors. Changed the o ring that causes such a fuss, don't know why nothing wrong with it. Why aren't I getting any power to the injectors?
I have a 2002 sprinter van and starts when engine is warm temperature about 80 degrees Otherwise when it’s cold I have to spray starter fluid in the intake then it starts
Please advice what I need to do
Thank you
Thanks for the tips
I desperately need help I almost getting crazy 3 times I replaced hi pressure fuel pump 4 times fuel rail regulator replaced all crankshaft and camshaft sensor has replaced the fuel filter and the fuel pump has been replaced still not working engine crank but no pressure into the rail there was a backflow issue couple of injectors they are fixed there is no backflow when I connect manual hand pressure pump directly into the rail I can see 90 bar from my xentry program cp3 pump I replace that was a reman rebuilt pump still not working getting crazy please please help
also, I start the engine with starter fluid about 15 seconds after that I see an error code on my program says crankshaft sensor signal faulty (if the engine turns with spray) xentry shows that 0 bar I only see with the manual pump when I disconnected cp3 pump