Close
Car Questions
RepairPal is your advocate for car care advice and guidance

How much fuel pressure should there be, and where is it measured ?

(1994 Chevrolet S10)
in San Diego, CA on January 14, 2014
Runs rough, won't idle, lurches, can't go faster than 25 mph. Replaced TPS & IAC Valve........No Change....Truck is on side of the road and I don't have OBD 1....no codes....Fuel pressure ? Ignition ?
Displaying 3 answers & 2 comments
Popular Answer
on January 14, 2014
CPI 55-60 psi @ schrader valve rear of engine. AND IT SHOULD HOLD PRESSURE WHEN KEY IS TURNED OFF!!! If it does not then the fuel spider is the likely suspect! Need a tow in that case. Black smoke from T-pipe?? Light on?
of Greg's Orange Auto on January 14, 2014
YOU NEED AN ADAPTOR TO CK IT WHERE THE FUEL FILTER IS
on January 14, 2014
Are there 2 filters ? Back of eng and back by fuel tank ?
of Tires Too on January 14, 2014
What is the 8th digit of the VIN. If it is W fuel pressure should be 55 to 60 psi. If it is a Z fuel pressure should be 6 to 9 psi.
on January 14, 2014
It's a Z..So the fuel sys. should hold press when key is off...If it doesn't...Spyder is located ? SURVEY SEZ...Under INTAKE MANIFOLD ???
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
i do not have spark. I do have fuel. replaced crank shaft sensor and cam sensor. Replaced coil, wires and plugs.
Car will stall while driving. Sometimes won't restart. At other times starts back up. Buick dealership has checked...
Didn't find what you were looking for?