Question about 2002 Jeep Grand Cherokee

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Long crank time but always starts

Can take upto 30 seconds or so to start. Checked all obvious things like fuel pressure, spark plugs, bad gas, fuel filter

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It may have good fuel pressure while running or cranking over, but sounds like it is not holding the pressure in the system.
Could be a weak fuel pump, and or fuel pressure regulator.

Posted on Mar 11, 2009

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4 Answers

93 Buick PA ran out of gas, batt died. Change battery and put gas,new fuel filter,New coils and base spark wires,cam and crank censor,fuel pump /sending unit still no start


Check for a good spark at the plugs ,if ok check fuel pressure and fuel flow. fuel pressure should be around 300 kpa, Flow around 500 ml, in 30 seconds.

Feb 23, 2015 | 1993 Buick Park Avenue

1 Answer

What else could cause a no start condition turns over ok occasionally it will fire


Fire when? as you release the key? If so replace the ignition switch. If you have fuel and spark it should start unless it is way out of time or the security is set. Another thing to consider is the spark plugs. Since you have had so much gas threw the engine, they may be fouled out.

Feb 05, 2015 | Cars & Trucks

1 Answer

Fuel pump


Testing of the fuel and ignition systems is in order. Intermittent problems need testing when the problem is present, otherwise it won't help find the problem.
I would start by checking for spark on a spark plug wire (or two or three plug wires, in case it may be a bad coil), during those times when it won't start. You need to see a blue, snapping spark to verify ignition system is working.
To check the fuel system, have the fuel pressure checked, and the injector circuit checked. Good that you hear the pump, but you don't know if fuel pressure is correct, or if fuel is getting into the cylinders. One short test is to spray starting fluid or carb cleaner into the intake while engine is cranking. If engine fires up for a few seconds, you know it is a gas related problem.
If ignition system is the intermittent problem, could be failing coil or coils, ignition module, crank position sensor, even the computer, or a wiring problem like a bad connection. Testing of each component will be required, or you could start throwing new parts at it, like many people do, until you find the bad part. Find a reputable mechanic-there still are a few, lol.

Jul 30, 2013 | 1998 GMC Sierra

3 Answers

My 2003 ford focus se.sounds like it wants to start but wont.is that my fuel pump?


If you open your fuel cap and have someone turn the ignition on you should hear a buzzing noise in the gas tank for two seconds. That's your fuel pump. Also go to the pressure regulator under the hood, access the pressure tester valve, press on the valve and have someone crank the engine for one second. You should get gas coming out.

May 29, 2011 | 2003 Ford Focus

1 Answer

It has been sitting for about 1 year without it being started. Last week I tried to start it and it started after a while and then stopped. I checked a bunch of things and all seemed fine. A friend said...


i am going to say that the main issue here is that the fuel pump died out. best way to check is get a fuel pressure gauge and check to see what the pressure is coming to the fuel rail

Feb 20, 2011 | 1987 Chevrolet Celebrity

2 Answers

Car not starting it cranks like it is out of gas


The first thing i would do is try to spray the throtlebody with starting fluid and see if it starts up for a few seconds, if it does then we know its fuel and the most common problem with these trucks would be the fuelpump, this sounds like it may need to be replaced, there are problems with the wir connector to pump module , this should be replaced when replacing the pump, this is located inside the fuel tank, the tank will need to be removed to install new pump asm, heres a picture to help you understand what im talking about.

Oct 31, 2010 | 2001 GMC Jimmy

1 Answer

Car will not roll over in park...starts occassionally then dies within a few seconds, cranks fine...just will not turn over. Purchased new battery, too.


Most probably its a low fuel pressure related problem.Get the fuel pressure checked.If its low then this is faulty fuel pump and clogged fuel filter issue.the other possibilities are,-----

A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also this problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt.If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced.If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the care. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If it very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gage and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem.Thanks.Helpmech.

Aug 24, 2010 | 1998 Toyota Corolla

1 Answer

Car cranks but will not start


Most probably its a low fuel pressure related problem.Get the fuel pressure checked.If its low then this is faulty fuel pump and clogged fuel filter issue.the other possibilities are,-----

A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also this problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt.If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced.If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the care. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If it very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gage and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem.Thanks.Helpmech.

Aug 22, 2010 | 1993 Honda Accord

2 Answers

Bmw 530d e39 2002 car will not start, turns over fine but will not fire, bit of easy start and starts after about 5 - 10 sec cranking, once running, engine runs smooth and powerful, as soon as you turn it...


Most probably its a low fuel pressure related problem.Get the fuel pressure checked.If its low then this is faulty fuel pump and clogged fuel filter issue.the other possibilities are,-----

A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also this problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt.If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced.If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the care. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If it very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gage and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem.Thanks.Helpmech.

Aug 05, 2010 | 1999 BMW 5 Series

1 Answer

I have a 99 silverado z 71 with the 5.3 engine with 235.000 miles we had a problem with starting it when it was warm found out it was a bad fuel pressure regulator replaced it now it starts all the time...


I have a 1999 Chevy Silverado 5.3, It won't start. I drove it home, parked it, and the following morning it wouldn't start. On a couple of occasions, i have had a difficult time starting it. On both of those occasion, I waited about 30 minutes, then cranked it and it started with no issues following. I have replaced all the spark plugs, spark plug wires, fuel filter, fuel pressure regualtor, crank postion sensor, I have cleaned all the injectors, checked the injectors with a noid light. I have checked the fuel pressure what matched the specs in the repair manuel, checked all the fueses, i have a fully charged battery, what should i try next, taking it to a dealer? I have not replaced the fuel pump, that was the last thing i wanted to replace. any suggestions?

Jan 31, 2010 | 1999 Chevrolet Silverado 1500

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