Have an '88 300TE that has sat for maybe 6 years and I'm trying to bring it back to life.

Drained old gas, replaced the fuel pump, checked the filter and added new gas but no start. Add a little gas in the intake and it runs for a moment.

Tried different fuel pump relays and finally jumpered the fuel pump at the relay plug, got fuel pressure at the fuel distributor 'in' side and at the pressure regulator but no start. Depressing fuel distributor plate with cracked injector line produces no fuel.

The idle air motor to fuel distributor hose is brittle so I've ordered that and a few other hoses for good measure.

Where do I go now? Could vacuum leaks in idle air motor hose cause no fuel at all to injectors? I also find it hard to believe three fuel pump relays are bad, it is the BACK relay of the two behind the ECU, right? It must be as jumpering two contacts at the middle run the fuel pump but...

Thanks for any pointers!

Are you certain the FD is not plugged up?

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

He means "check the screen filter" on the input line to the FD. A blast of crud from a fuel tank sitting so long could have plugged it up.

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Resistance is Futile.

There is fuel pressure on the line going to the fuel pressure regulator so I guessed we were ok there. Is this screen behind the nut closest to the FD? I didn't see one with just the fuel line off...