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Should the primer pump go hard

The car will not start... I have disconnected the hand Primer / Filter inlet line and can blow air back to the tank easily... I have replaced the filter and ensured the 1 way flow valve in the primer pump is working. however the primer pump has no real output...and does not pump up pressure... Is this a common fault Should I replace the pump..?

Posted by Trevor on


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SOURCE: 90 Daihatsu Applause 1.6 engine cuts out, replaced

try faulty imobaliser / central locking if fitted

Posted on Dec 15, 2009



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SOURCE: hard to start and when engine runs no power. It

I think its time to check exhaust back pressure. You can install a gage where the o2 sensor screws into the exhaust BEFORE the catalytic converter.

Posted on Feb 15, 2011


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Changing that filter would my next action. Whether the pump is in the tank or added on outside the tank, you may still need to prime the system after the filter is replaced. Air in the line may cause it to stall, just reprime and start again.

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1 Answer

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