help engine has trouble starting unless I use starter fluid

[caliburrx8]

sometimes engine wont start itll crank for like 5 mins then itll start and run fine until i turn it off i. I just changed the plugs and didnt help. It only does it sometimes and if i use starter fluid itll start right up.

 

[jrohner]

It's probably your coolant temp sensor that goes to the ECU. The top one with one wire is just for the gauge, so make sure you change the right one. If you have or know someone with a logger, you can check it first that way or go by the ohms of the sensor with the values shown in a service manual (certain ohms at a certain temperature).

 

[laserspeeddemon]

Telling us what car helps.

 

[1992awdlaser]

Probably the coolant temp sensor. Does it start fine when the engine is warm?

 

[caliburrx8]

Yea sometimes it usually happens when i drive it for like 10 mins and turn it off

 

[Afroclipse]

I had the same problem bought some NGK wires and that was that.

 

[DSM1G90]

Good ol' Vapor Lock is what you're experiencing here: Either got a gas line close to something hot causing fuel to vaporize in the line, weak fuel pump, bad check valve in the fuel line allowing fuel to drain back into the tank, bad FPR on the rail letting the fuel drain back into the tank (disconnect the vacuum line to the FPR from the selinoid and plug up the end to see if this helps some..) et.al. ..

Something to check on .. - DSM

 

[caliburrx8]

yea it seems to be it was the coolant temp sensor the cars has been starting up no problem since i changed it thanks guys.

 

[soulweaver]

I thought the coolant temp sensor controlled when your fans kicked on. Or, am I wrong?

 

[LunarEclips]

I thought the coolant temp sensor controlled when your fans kicked on. Or, am I wrong?

Yeah, you're wrong. Read up on coolant temp sensors. They do ALOT...