Where is the fuel pump relay on a 1990 Jeep Wrangler?
There are 2 relays on the outer side of the battery tray. One is the fuel pump relay, and the other is for the Idle control motor.
Can low fuel pressure cause no start?
Low fuel pressure can cause hard starting, a rough idle, misfiring, hesitation and stalling. No fuel pressure will prevent the engine from starting, or will cause the engine to quit running if the fuel pump fails while driving.
Where is the fuse box on a 1990 Jeep Wrangler?
Fuse Box Location It is located under the dashboard.
How much is a fuel pump for a Jeep Wrangler?
Jeep Wrangler Fuel Pump Replacement Cost Estimate. The average cost for a Jeep Wrangler fuel pump replacement is between $542 and $695. Labor costs are estimated between $152 and $192 while parts are priced between $390 and $503.
Could a clogged fuel filter?
Random Misfire or Rough Idle A clogged fuel filter causes low fuel pressure that results in a lean fuel condition and engine misfire. This can result in poor fuel mileage, rough idling and possibly cause the check engine light to come on.
Where is the fuse box on a 92 Jeep Wrangler?
Why does my Jeep Wrangler not have fuel pressure?
Problem: Jeep would run for a day then die and not get any fuel pressure or would run for a few weeks and then fail to start with no fuel pressure. Temporary solution was to unplug the grey plug next to the ecu and plug it back in, this would solve the problem for a short time. Also note be sure your battery is sitting on the black temp sensor.
What should I do if my Jeep wont start?
Nothing.. Turns over like a champ but wont fire. The sending guage shows gas in the tank but there does not seem to be more then a dripple of gas from the pressure release valve on the fuel injection rail. That puppy should be shooting out. soooo im not getting fuel to the rail. Any ideas from this forum would be appreciated. im stumped.
What to do when your fuel pump wont turn on?
You can use a test light to check for power going to the pump. Unplug the connector and touch the light to the green/black wire. Have someone turn the key on, at that time you should see it light up for a couple of seconds. Then have them attempt to crank the motor, it should stay lite while they are spinning it over.