Another starting issue - PeachParts Mercedes-Benz Forum

gtrpicker · #1 04-02-2009, 12:45 PM

1987 260E
Vehicle starts and idles great when its cold.
After a run sufficient to warm up the motor if I turn it off for more than say 20 mins. it takes forever to start. Turns over great but will not fire. Once it fires it idles great and runs fine. When I did a search I found mostly the reverse, poor cold starting, no problems once its running.
Question: is there an accumulator or something like it in the fuel system that maintains fuel pressure while the vehicle is idle (motor off).

Appreciate any input
Thanks
Michael

lkchris · #2 04-02-2009, 01:38 PM

Hard hot starting is often the result of the motor being flooded due to leaking injectors.

22-year old injectors are ready for replacement.

See if it starts better by holding throttle open when cranking.

SD300 · #3 04-02-2009, 05:56 PM

some car u need to floor the gas inorder to start. It does sounds like flooded or no gas

if u have a can of cold start try it, if flooded then should be equally hard to start, if no gas then it should fire up right away.

Or pull a plug to see if its wet.

my fnd's 560 his ATF was disappearing, we think it went into the vacuum too. As modulator diagphragm broken, also find it very hard to start after driving for a while.
1st start is always good. Now car sold we got rid of the prob.

david s poole · #4 04-03-2009, 11:50 AM

likely that fuel adjustment is too lean.try putting foot on gas when starting warm,if it fires more easily then richen the main adjustment a little.