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2nd April 2023, 15:30 | #1 |
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Rover 75 diesel not starting after HPFP replacement
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Last edited by JMW; 8th June 2024 at 21:41.. |
2nd April 2023, 16:15 | #2 |
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Glowplug fault is a red herring - every one I've checked comes up with that. What are the fuel pressures, LP and HP?
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2nd April 2023, 18:31 | #3 |
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What rail pressure do you get while cranking? You shoudl be hitting 30,000kpa, if you don't it won't start.
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2nd April 2023, 20:33 | #4 |
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The HPFP has a check valve in the inlet. If it's a 2nd hand pump that's sat around for a while, it might be that the valve is stuck. This happened to me after my car sat for a number of months. Might be worth checking?
Undo the 3 bolts holding the power steering reservoir and move it to the side. Undo the hose clamp, access is tricky, I removed the engine cover and fed in a long flat bladed screwdriver from the right hand side (looking at the engine from the front of the car). Pull off the hose. Use a parallel pin punch or screwdriver to press on the ball in the inlet fitting. You should feel it moving back and forth with a spring behind it.
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4th April 2023, 11:20 | #5 |
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Here's the thread from when I had my non-starting problem, there might be useful info in there: https://www.the75andztclub.co.uk/for...d.php?t=320259
Have you tried a squirt of Easy Start (or similar) down the intercooler hose? If it starts and runs on this, that could be indicative of a fuel pressure regulator issue.
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Matt 2001 Rover 75 Connoisseur SE 2.5 (BRG) 1999 Rover 75 Club 2.5 (Dorchester Red) 1973 Triumph Dolomite (Honeysuckle) |
4th April 2023, 15:01 | #6 |
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That could be your problem, you should be seeing upwards of 300 bar while cranking. I'd be checking all wiring to the rail and the pump. With 0 rail pressure it won't even attempt to start.
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4th April 2023, 20:17 | #7 | ||
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Quote:
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4th April 2023, 21:41 | #8 |
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Glad to hear you got her going
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