1995 Camry (200K miles)will not start after sitting for a few hours. Not all the time. Engine turns over but will not fire. Is this a fuel pump problem?

Have you checked fuel pressure before and after cranking the engine ? ?

Your Jeep has what's known as the delayed start, no check engine light problem. The Jeep will not start until the check engine light comes on, on the dashboard. Next time it cranks but will not start, look at the dashboard to see if the check engine light is illuminated. If it's not lit up, then your Jeep does have that problem and your Jeep ecu is in need of repair or replacement. There are components inside the ecu that are going bad and will continue to get worse, eventually leading to a permanent no start condition. There are ecu repair services and replacement ecus on ebay.

Try pouring a little starting fluid or fuel into the throttle body and see if it will fire a few times--if yes, then check the fuel system. Does the fuel pump run for a moment or two, then shut off when you turn the key to on (good!)? The fuel filter is a common problem. At this point, does the check engine light come on? If so, rent a scanner and read out any codes which should at least point to the general problem area. Don't continue to replace parts until it runs--that can get very expensive. If the computer has problems, the scan should reveal that condition. Hope this helps!

I Have a 1999 ford f150 4.6 that back fires and is just running really ruff when idling alot of nack fire a sord of like a pulse going on what is my problem?

are you sure timing hasn't jumped

most likely the module that goes inside of your distributor is bad.i had the same thing happen to me on my astro van i owned a few years ago.i would drive it for a while then shut it off.it would not start until it completely cooled down, then it would start back up right away.i replaced the module inside the distributor( which cost me about 45 dollars at the time)and the van never had that problem again.it would start up every time no matter how many times i turned it on or off.hope this info helps you.take care and good luck, manny

hi reset it by disconnecting the live battery connection for3 mins then re connect that has done it for me if this helps please rate it thanks

Replace the fuel filter to help the fuel pump, but it sounds like the fuel pump check valve has gone bad and your losing your fuel pressure to start the engine. Your going to have to keep priming the fuel system by turning the ignition key to the run position for 5 seconds 3 times before you try to start the engine. The only fix for this is to replace the fuel pump, and that is costly. Good luck and take note: the fuel pump has a life time of around 150,000 miles and anything past that is borrowed time.

Fuel pump and injectors are plugged. Any time a car sets with gas in it the gas separates and will varnish the fuel pump and injectors and possibly cause a fire just like a Vette I had to work on had the same problem. That means new fuel pump and filter and possibly injectors.

You do not have to replace the fuel pump at a specific mileage.
I hate to speculate without physically inspecting the vehicle, but, my best solution here & now may be the fuel pump. Now, I would not go out & buy one before you had proper diagnosis. Here is one test, but you will need to have to experience the stall again, and then test to see if you have fuel pressure at the injectors. If you have no fuel pressure, replace the pump. Fuel filter issues do not "come & go", they stay, and your car would not run properly. Also, a fuel pump failure will not set a computer code on this particular model vehicle. Hope this helps..