Question about 1991 Jeep Wrangler

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2.5 4cyl. with starting problem. It has fuel to fuel rail and spark to the plugs. It ran fine then I shut it off and it would not restart for 2hrs.then it started fin

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Did it continue to run fine after those two hours or did it die about 30 minutes afterwards?

Posted on Nov 01, 2010

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1989 Bronco fullsize has sat for the past 6 years and wont start, will turn over, has new gas with fuel stabilizer, still no firing. Replacing spark plugs and the fuel pump are the next two steps. ...


Assuming she ran good before she sat, replacing the plugs, cap and rotor isn't a bad idea.Step 1: Make sure you have good spark. No need to worry about timing right now. Step 2: If you have spark, then we have to see if its getting gas. There are two fuel pumps on this Bronco. One in tank and one on the frame rail. Can you hear either one running? The in tank one should come on for a few minutes and shut off. The front one is harder to hear.If you hear it, borrow or rent a FUEL PRESSURE GAUGE and check your fuel pressure. There is a fitting similar to a tire valve on fuel rail. Pressure should remain constant.If either pump fails you will not get adequate fuel flow. The front pump is easy to get to for trouble-shooting. Don't buy anything unless your sure you will need it. Hope this helps.

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Jan 14, 2010 | 1991 Chevrolet Camaro

1 Answer

Engine was running fine and shut it off 5 min. Tried restart and engine cranks but won't fire. Dual tanks 1 new fuel pump.Switch tanks still no start, tried next day, runs fine???????


Step #1 in any automobile diagnosis is "Isolate the system"
Switching fuel tanks may have seemed like a good idea, but it did not definitively determine whether the the fuel is getting to the fuel rails, so you are no closer to eliminating the fuel devery system than you were when the engine died.
If it does it again, you should do the easiest things first.
Pull a spark plug wire and check to see that you have good spark reaching the spark plugs. Good spark will eliminate the entire spark control system.
Only if you have good spark should you suspect a "part-time " fuel system problem. The Fuel delivery system can be eliminated if actual fuel pressure is checked at the fuel rail. (although you could still have injectors not firing for one reason or another)
You are losing one of these systems. (spark or fuel) only once you have determined which one, can you continue diagnosis to pinpiont the failure.

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I have a 2001 Pontiac Sunfire, 2200 4cyl. My neice ran in the ditch about 30 mph and damaged the radiator. I replaced the radiator and the car will not start. I pullled a plug wire and it has spark, pulled...


Look for the crash sensor that shuts off the fuel pump, usually located in a hard to reach spot in the trunk, push to reset it. Check your owners manual, it will tell you where if you can't locate it by sight.

Sep 03, 2009 | 2001 Pontiac Sunfire

1 Answer

Car ran poor then shut off over and over so put new o 2 sensor in now the car will not start at all?


OK this is what you should do 1. check for spark. 2. check to see if you are getting fuel pressure at the fuel rail. 3. if you don't get spark you have a bad coil or a bad electronic control module,also check the plug wires and spark plugs. the wires could make your car studer 3. if you don't get fuel at the fuel rail you have a bad fuel pump. get back to me and let me know what you found. Thank you

Aug 11, 2009 | 1989 Chevrolet Cavalier

1 Answer

2001 GMC Safari. Changed spark plugs, rotor cap and distributor. Started and ran fine. After 6 or 7 restarts the van died down like it was going to cut off and then ran fine. After shutting it off it won't...


Try changing the fuel filter and checking the fuel pressure at the shredder valve. The readings should be 60 to 65psi with the fuel line pressurized with the engine not running, once the engine is running. It should drop by 5psi. Start with the simple things first. Keep me posted, be glad to help.

Jun 28, 2009 | 2001 GMC Safari

3 Answers

No restart


change fuel filter if you have then change fuel pump

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