Hot start issues 85 sl280 fuel injected

[oldan]

Starts fine cold.

When engine is hot it acts like it is flooded when starting.

I have seen this problem posted before and I know a part needs replacement.

What is the name of the part and where is it located on the engine?

Thanks

[Frank Reiner]

Originally Posted by oldan

Starts fine cold.

When engine is hot it acts like it is flooded when starting.

I have seen this problem posted before and I know a part needs replacement.

What is the name of the part and where is it located on the engine?

Thanks

od:

With all respect, could you elaborate a bit on the symptom(s) as you perceive it/them. For many folks, too much fuel, and too little fuel are indistinguishable.

[rowdie]

1. It is a 280SL not SL280.

2. How long does it sit before the hard start? If the problem occurs immediately after shutting off I don't know. If several minutes it is probably the accumulator. The accumulator is located above the fuel filter

[oldan]

Engine will start if you do it shortly after shutting down.

If it sits for approx 3 minutes it does not want to start normally

[Frank Reiner]

od:

Have a look at this thread; your description suggests a leaky push valve.
1978 6.9 Hot Start Troubles

[meltedpanda]

you should have a Kjet with O2 sensors? PM me an email and I'll send you some trouble shooting guides

[optimusprime]

Originally Posted by rowdie

1. It is a 280SL not SL280.

2. How long does it sit before the hard start? If the problem occurs immediately after shutting off I don't know. If several minutes it is probably the accumulator. The accumulator is located above the fuel filter

As i have the same problem .I can say replacing my accumulator on my car it never cured my hot starting.

[Diseasel300]

Originally Posted by optimusprime

As i have the same problem .I can say replacing my accumulator on my car it never cured my hot starting.

Same with my 500SL. It did HELP a little, but the stupidly embarrassing hot-start issue was still there, but at least then I could actually get it to sputter and catch. FWIW my accumulator was definitely toast.

My issue turned out to be 2-fold. The ignition module was on its way out (failed altogether a couple months later) and the boots for the vacuum lines going to the WUR were leaking, one was so loose it wasn't even attached.

Replaced the vacuum line boots, and a new ignition module and it runs like clockwork.

Not saying this is your problem, just pointing out that the accumulator CAN be a contributing factor, but often something else is present as well.

[shortray]

Originally Posted by Diseasel300

Same with my 500SL. It did HELP a little, but the stupidly embarrassing hot-start issue was still there, but at least then I could actually get it to sputter and catch. FWIW my accumulator was definitely toast.

My issue turned out to be 2-fold. The ignition module was on its way out (failed altogether a couple months later) and the boots for the vacuum lines going to the WUR were leaking, one was so loose it wasn't even attached.

Replaced the vacuum line boots, and a new ignition module and it runs like clockwork.

Not saying this is your problem, just pointing out that the accumulator CAN be a contributing factor, but often something else is present as well.

Please say what FWIW and WUR means. I'm new to this DIY stuff and do not know what a lot of these abbreviations mean. Is there a list of abbreviations available? Thanks

[Diseasel300]

FWIW is shorthand for "For What It's Worth".

WUR is the "Warm-Up Regulator".

Another one you'll see pretty often that took me a while to figure out is AFAIK - "As Far As I Know"

[oldan]

Replaced and runs fine

Thanks Rowdie and others for your help

Dan