need help please

kastanza · Oct 31st, 2009, 05:30 PM

so i have been having this problem with my car which i thought it was my coolant temp sensor i just replaced that yesterday and still when the car gets up to temp. going to a stop it dies and it cuts out still. i have been trying to figure this out for awhile now and just cant find the problem but it only does when the engine gets warm so it would really help me out if someone could figure out something cause im stumped thank you all.

pulsar86 · Oct 31st, 2009, 07:40 PM

Check that your fuel cap is venting properly. If the car stalls remove the cap and see if it restarts straight away. If the cap isn't venting and letting air to the tank a vacuum forms after the car runs a while and the pump can't pick up fuel from the tank.

kastanza · Nov 2nd, 2009, 09:10 AM

im pretty sure it is but the car only does it when the engine gets warm.

pulsar86 · Nov 2nd, 2009, 03:16 PM

If the tank isn't venting properly it takes a while with the engine running before the problem shows itself that is what makes it seem like it is related to the engine temp when it is only that it takes time for the vacuum to develop. My Dad had this problem on his car and it will definately cause the car to stall. How long does it take before the car can be restarted after it stalls? If it is a while, next time it stalls remove the fuel cap and test if it restarts straight away, if it does the cap is at fault.

kastanza · Nov 3rd, 2009, 12:47 PM

when the car stalls it starts right up everytime but i will try the thing with the cap see if that works thank you.

jdgrotte · Nov 3rd, 2009, 07:40 PM

EGR valve sticking open...?

kastanza · Nov 3rd, 2009, 08:15 PM

havent checked that is there an easy way of checking to see if it is

kastanza · Nov 6th, 2009, 10:52 PM

checked the egr it isnt sticking i just took my coil off today to see if was cracked but it aint. some people say it could be the maf but im not sure on that one.

pulsar86 · Nov 6th, 2009, 11:00 PM

You can't tell the condition of the coil by appearance. You can check with a multimeter to see if the resistance is correct if you know the correct figures for your coil, or get an auto elecrician to check it for you. If a coil is failing it usually starts out by the engine cutting in and out under acceleration and bogs down from a start and then fires ok. eventually the car won't start at all or will start and cut out under load as the coil gets worse. It is very hard to pin down the problem until you check the coil properly.

kastanza · Nov 8th, 2009, 01:42 PM

i will try that then but it does start up every time though.