99 interpid,503000 kms never had previous problems,just regular maintenance.wo,uldn't start abo ut 1month ago ..shop replaced fuel pump..at the time,the fuel gauage wouldn't go up and light came on had lots of fuel.. the car ran after replacing the pump. Now the car just refuses to start.local shop has tested everything they can think of.t ahey tell me the computer isn't allowing the car to start.it had a code saying #6 cylinder wasn't firing.what could be the problem?
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Drop the gas tank and check for contamination/corrosion. You're going to have to do that to replace the fuel level sender anyway and check both the fuel pump (it's in the tank) and the primary filter on the pickup tube.
If a mechanic has checked it and say's it's a bad fuel pump,it most likely is 90%.If the kms are around 180000 or 100000 miles or more, it really most likely is 99%.
Stalling/wait then starts problem sounds like the crank sensor is going bad. It should be easy for a shop to check. Electrical problems need diagnosis at a shop that specializes in auto electric.
First try replacing air filter if not done recently $30, next consider bad fuel put in fuel from major oil company from station with many patrons.Then you need to look at fuel delivery system including fuel filter and furl pump. But first try the 2 things mentioned.
on the left hand frame rail ahead of the front tank there is a valve that controls which tank the truck runs off of it is bad let me know how you make out
p.s. if you dont wantto replace right away just run the tank that over fills down first and monitor when you switch over to the other one
fuel pump more than likely, take it to a shop to be sure, or if you are handy check your fuel pressure with a fuel pressure gauge.
I bet if you let the car cool off after a few hours it will start up again. You could also try banging on the fuel tank with a block of wood. If that makes the car start you have a faulty fuel pump.
There are other causes it could be, but a fuel pump is most likely your culprit.
I could go into details and explain why fuel pumps fail this way... but I'm too lazy to type now..
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