1-888-847-8008

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Visalia, CA

93292

maints@lightspeed.net

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(Shop)

Manifold Pressure Low Or Fluctuating

POSSIBLE CAUSES AND REMEDIES

Restriction in duct between air cleaner and engine intake manifold-- (action) remove restriction or replace damaged parts as needed.
Restriction in engine exhaust system after turbocharger-- (action) remove restriction or replace damaged parts as needed.
Restriction in engine intake or exhaust manifold-- (action) refer to engine manufacturer maintenance publications.
Pressure relief valve opens at too low a pressure-- (action) see troubleshooting chart for this condition.
Engine malfunction, ignition or fuel systems-- (action) refer to engine manufacturer maintenance publications.
Turbocharger output low or operates sluggishly-- (action) see troubleshooting chart for this condition.
Engine oil pressure low-- (action) refer to engine manufacturer's maintenance publications.
Controller or wastegate dirty and/or sticking-- (action) clean or replace as necessary.

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