89 300 CE won't start
Thread Starter
Junior Member
Joined: Dec 2007
Posts: 36
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From: Seattle, Washington, USA
1989 300CE & 1988 300TE
89 300 CE won't start
Car was running fine, then cut out. I was able to get it restarted, and it ran like crap,, then it'd smooth out then after a few miles died.
The shop replaced the Fuel Pump relay, disrtibutor cap, plugs, rotor cap, checked the coil etc.
They got it restarted, I drove it, andd died after two miles... They can't figure it out!!! Help!
The shop replaced the Fuel Pump relay, disrtibutor cap, plugs, rotor cap, checked the coil etc.
They got it restarted, I drove it, andd died after two miles... They can't figure it out!!! Help!
MBWorld Fanatic!
Joined: May 2005
Posts: 2,494
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From: REHOBOTH BEACH DE
88-300CE TWIN TURBO, 99-C43, 05-G55K, 71-280SL, 94-E320 CAB, 08 CLK63 BLACK SERIES
When you state "died" do you mean that it still cranks when you try to restart but doesn't fire up?
My guess would be something in the OVP and FPR circuit.
A proven speed signal is required to keep the engine running, if not the circuit shuts the engine down by stopping the fuel pumps.
It's a safety consideration to not pump fuel into an engine that's not running.
I would check this circuit from the source to the fuel pumps.
Ed A.
My guess would be something in the OVP and FPR circuit.
A proven speed signal is required to keep the engine running, if not the circuit shuts the engine down by stopping the fuel pumps.
It's a safety consideration to not pump fuel into an engine that's not running.
I would check this circuit from the source to the fuel pumps.
Ed A.
Last edited by RBYCC; Jul 27, 2010 at 02:56 PM.
Newbie
Joined: Aug 2010
Posts: 13
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1990 300e 2.6ltr
cheak the fuel pump relay behind the battrey, you will see a clear cap, open and cheak 10amp fuse if blown,if not open mass air flow with fuel distributer 1/4 turn at a time replace filter and cover befor testing.
