Fuel pressure gauge connected in an engine bay, composite image

Fuel Pressure Gauge
A Sears/Craftsman gauge costs $35-55, but many parts stores will loan/rent tools like this for a deposit. To check pressure while driving, the gauge should be positioned so it's visible, but the driver should not WATCH the gauge. Watch the road, and only glance at the gauge briefly when symptoms appear.

This is a '98 4.6L car, but the idea is the same for all EFI vehicles. Some just don't have a test fitting, which makes connecting the gauge more challenging.



For '90-96 F-series & Bronco, read these:
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See also:
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For '84-89 EFI trucks, see these captions:

Owner caption September 2010 · Photo 3292 of 5000