Engine runs on 4 cylinders when cold. 5th cylinder kicks in at 2,000 rpm's. Has a little hesitation after engine get hot at idle.When engine is cold second cylinder from front of engine get no fuel can take the injector line off no fuel comes out. What's up?

What fuel are you running? Has the car been exposed to WVO?

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

no wvo running pump diesel always

You might want to check your injectors, may not be the pump, my car would run on 2 or 3 for a while then the other 2 would kick in, changed my injectors and runs fine. Good luck.

very bad compression on that one cylinder. Like a valve isnt seating right or something. Only at 2k rpm does the piston rise fast enough to ignite the fuel before compression leaks past the rings/valves.

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1981 300SD 512k OM603

Have the valves been adjusted lately?

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

I agree with the above posts but if it does turn out to be the pump (though unlikely) I have a known good one I could sell. Gotta plug my inventory!

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

Run a compression test

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine