300TE won't start
05-11-2011, 10:48 AM
#1
Member
Thread Starter
300TE won't start
The trusty 91 300TE suddenly would not start while I had A/C gauges hooked up to measure high and low pressures, and I had bridged the low pressure switch on the receiver/dryer. The car had no symptoms of any problems before, and has never failed to start ever.
Engine turns over strong, the 2 fuel pumps buzz/rattle, smell gas at the tailpipe. I’ve tried cranking for 30 seconds a go, with or without the pedal to the floor. Plugs recent, ignition wires 3 years old, new cap 3 months ago & rotor 1 year ago, coil 5 years old, 2 fuses on OVP relay good by ohmmeter, OVP relay 5 years old. I do not have a spare OVP relay or coil to swap in. But gas in tank!
No one around to crank the engine while I hold plug to block, or coil wire to block, so I can’t check that yet.
Other ideas? Thanks, Dave
Engine turns over strong, the 2 fuel pumps buzz/rattle, smell gas at the tailpipe. I’ve tried cranking for 30 seconds a go, with or without the pedal to the floor. Plugs recent, ignition wires 3 years old, new cap 3 months ago & rotor 1 year ago, coil 5 years old, 2 fuses on OVP relay good by ohmmeter, OVP relay 5 years old. I do not have a spare OVP relay or coil to swap in. But gas in tank!
No one around to crank the engine while I hold plug to block, or coil wire to block, so I can’t check that yet.
Other ideas? Thanks, Dave
05-11-2011, 11:00 AM
#2
MBWorld Fanatic!
Check that you
didn't inadvertently bump the coil wire when working on the pressure read of the a/c.
05-11-2011, 11:59 AM
#3
Member
Thread Starter
That's what I would have thought too. I unplugged and plugged back in the high tension wire, and also loosened and retightened the nuts of the other two sets of small guage wires
Very weird, but I'm going to walk out and check that for the 3rd time.
Very weird, but I'm going to walk out and check that for the 3rd time.
