1999 Toyota Camry High Fuel Use

1999 TOYOTA CAMRY
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BEHROZ
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  • 2 POSTS
Hi
I have a toyota camry 99 . from 1 month ago my car use fuel very high (in per 100km 16.3 liter and before this time would use 11 litre in per 100 km) . please help me for this problem .

thanks :cry:
Dec 16, 2006 at 2:02 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Last Tune-up?

Start by checking your fuel pressure
Dec 16, 2006 at 8:15 PM
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BEHROZ
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last tune-up was 2 month ago .
mileage now 169000 km.
sorry i am beginner please guide me about test fuel presure.
Dec 17, 2006 at 2:36 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
[quote:df291124f6="behroz"]last tune-up was 2 month ago .
mileage now 169000 km.
sorry i am beginner please guide me about test fuel presure.[/quote:df291124f6]


Find the fuel filter,take it off-install pressure gauge-turn key ON -read the gauge-dunno the specifications look it up in the book.you're looking for excessive pressure or injector problems. FYI anything can cause high consumption-alignment, brakes,slipping tranny and no upshifting, valve train,loss of compression,faulty ignition system.

To really get to the problem-check the compression and go from there-check every subsystem within the vehicle.
Dec 17, 2006 at 6:32 AM
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Suggested Repair

Test fuel pressure at the fuel filter with a gauge (key on) and compare it with the service specification, looking for excessive pressure or injector problems. Then check compression and related systems that can raise fuel use, including ignition, alignment, brakes, and transmission shifting.

Conversation Summary

The owner of a 1999 Toyota Camry with 169,000 km reports fuel use rose from about 11 to 16.3 L per 100 km despite a tune-up two months earlier. The expert advises a fuel-pressure test and then checking compression plus other systems that can increase consumption, such as ignition, alignment, brakes, and transmission shifting.

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