left car running/out of gas-now cranks but will not start
Thread Starter
Newbie
Joined: Jan 2010
Posts: 5
Likes: 0
From: Roanoke Va
430 clk conv 2002
left car running/out of gas-now cranks but will not start
Any help would be greatly appreciated. long story short. we had a family emergency & we left our clk 430 running in the garage until it ran out of gas. Here's what Ive done before I had it towed to the stealership.
1) replaced battery,2)checked all fuses & relays,3)replaced CPS-Still just cranks but will not fire.
I had it towed & the dealership replaced the fuel pump & the fuel filter-still will not start. they wanted to drop the tank & clean it (9.5 hrs @ $98 per hr.) technician showed me white gunk in the bottom of the tank.
I'am going to the dealership Monday for more information & Ill post then. Any thoughts and/or help is much appreciated
1) replaced battery,2)checked all fuses & relays,3)replaced CPS-Still just cranks but will not fire.
I had it towed & the dealership replaced the fuel pump & the fuel filter-still will not start. they wanted to drop the tank & clean it (9.5 hrs @ $98 per hr.) technician showed me white gunk in the bottom of the tank.
I'am going to the dealership Monday for more information & Ill post then. Any thoughts and/or help is much appreciated
MBWorld Fanatic!
Joined: Sep 2006
Posts: 1,946
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From: So Cal
CLK Cabrio
There is a valve that looks like a tire valve on the fuel rail try cranking the motor while someone holds it open to let all of the air out of the system. If you spray starter fluid will it start?
Junior Member
Joined: Jan 2013
Posts: 16
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1999 CLK430
My guess is that you need to replace the filter.
I had a similar situation... when the tanks runs low, it sucks all the crap from the bottom of the tank, straight into the filter. The filter also contains the fuel pressure regulator, and once blocked, reduces the fuel pressure to the injectors. The result is that it will start, then stops after a few seconds. The valve is a air bleed point and used to measure fuel rail pressure.
I had a similar situation... when the tanks runs low, it sucks all the crap from the bottom of the tank, straight into the filter. The filter also contains the fuel pressure regulator, and once blocked, reduces the fuel pressure to the injectors. The result is that it will start, then stops after a few seconds. The valve is a air bleed point and used to measure fuel rail pressure.
Thread Starter
Newbie
Joined: Jan 2010
Posts: 5
Likes: 0
From: Roanoke Va
430 clk conv 2002
@OZCLK430,I appreciate your info,I have a new fuel filter & a fuel pump & it still will not start. just found out the dealership wants to charge me $3,700 to drop the fuel tank,clean it & replace all injectors and o rings.
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,273
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From: Orlando, FL
2015 GL550 4matic
+1 for testing pressure at the rail valve. If you have pressure there, then I would suspect clogged injectors. You can "borrow" a gauge that fits right on the rail valve from local auto parts store. Hopefully the dealer already did this easy step.
