

MOTOR PURR
restore your performance
Since 1967
US Phone (409) 787-1321
Fulfillment and Return Policy
Shipping rate is FLAT FEE $6.95 for all orders. Shipping is UPS 3-5 day ground, depending on your location. However, UPS doesn't guarantee delivery date. Orders received by 3 PM Central Time will ship same-day if at all possible, Refund Policy Motor Purr has a 100% no questions asked, no returns necessary refund policy.

CHECK ENGINE LIGHT
These Check Engine Light deposits form in, and cleaning is applied to, 3 general areas of your engine--1. fuel system (cleaned by our Injector Cleaner in the fuel tank--very easy), 2. crankcase (cleaned by our Tune Up--easy), and 3. air intake / exhaust (cleaned by our Tune Up plus IV Tube--not difficult).
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EGR Valve / Passages: Carbon buildup triggers flow-rate fault codes (e.g., P0401). Area 3 air intake / exhaust (Gasoline engines only with our iv tube)
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Oxygen (O2) Sensors: Soot buildup triggers slow-response or heater circuit fault codes. Area 1 fuel tank or 3 air intake / exhaust (Gasoline engines only with our iv tube)
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Fuel Injectors & Spark Plugs: Misfires caused by carbon deposits trigger cylinder-specific fault codes. Area 1 fuel tank
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DPF Filter / Pressure Sensors: Soot accumulation triggers differential pressure fault codes. Area 1 fuel tank (to reduce particulates in the exhaust)
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Catalytic Converter: Soot coating degrades precious metals, setting off catalyst efficiency codes (e.g., P0420, and others). Area 1 fuel tank or 3 air intake / exhaust (Gasoline engines only with our iv tube)
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Intake Valves: Airflow problems trigger lean/rich air-fuel mixture fault codes. Area 3 air intake / exhaust (Gasoline engines only with our iv tube)
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Stuck Turbo Vanes: Soot accumulation triggers boost pressure control deviation fault codes. Area 1 fuel tank to reduce soot load in the exhaust system