Been battling this issue for a 2 years. 2001 Dodge Neon R/T
When warm it starts everytime, even warmer weather infact, cold start it may take 2 tries or even several to get started.
Shot of ether in the intake then engine would start and stay running just fine. Fuel pump had been noisier the past couple years so I put a new denso unit in, quite an easy job in these cars. Even more so with only 2gal or gas in it
This didnt resolve the issue, next was checking the crank sensor and the wiring. Good power and ground at the connector, turning the engine by hand I could see the 5 volt return signal turning on and off. Granted this doesnt mean its good but I carried on to the next thing as I dont have the equipment to look at waveforms
Moved to cam sensor and found the inside of the connector to be quite soaked in oil, not sure how, it does face straight up. Cleaned up the connector and put a new Mopar cam sensor in.
Still having the same issue,
Next I may just go on to a ground connection cleaning. Its frustrating since its so intermittent, and may never happen during the warmer times of the year. This is my winter beater (which its great at being at) so I wanna find the issue, Ive gotten more than my moneys worth out of this car but cant part with it for some reason, been too good to me maybe in the 10 years Ive had it.
Its been near 50F outside the past couple days so my days of being able to crank/no-start and finding the culprit may be coming to an end this year. As it keeps starting fine.
This made me think coolant temp sensor or IAT sensor. I verified the coolant temp reading was accurate to ambient. Intake air temp wouldnt give me a number, I unplugged it and the car threw a code for it and battery light came on (only charging system at 13.5 volts) so it appears IAT sensor is at least doing something. Not sure if I should pursue that further. My sister has an 05 neon, so most things I can easily steal for an afternoon to verify any guesses I may have.
Grounds, or PCM is all I can think of now.
Last week, First try it didnt start, so I put a jumper cable from the neg battery terminal to a stud from the shock tower and it fired up fine, hard to say if that worked or was just a coincidence but Ill try it again or even during cranking with a helper. If I get the chance that is.
Anyway thats where Im at, just thought Id share this with you, and will update on anything new. I dont like firing new parts all over a problem, I really want to find the culprit.
When warm it starts everytime, even warmer weather infact, cold start it may take 2 tries or even several to get started.
Shot of ether in the intake then engine would start and stay running just fine. Fuel pump had been noisier the past couple years so I put a new denso unit in, quite an easy job in these cars. Even more so with only 2gal or gas in it
This didnt resolve the issue, next was checking the crank sensor and the wiring. Good power and ground at the connector, turning the engine by hand I could see the 5 volt return signal turning on and off. Granted this doesnt mean its good but I carried on to the next thing as I dont have the equipment to look at waveforms
Moved to cam sensor and found the inside of the connector to be quite soaked in oil, not sure how, it does face straight up. Cleaned up the connector and put a new Mopar cam sensor in.
Still having the same issue,
Next I may just go on to a ground connection cleaning. Its frustrating since its so intermittent, and may never happen during the warmer times of the year. This is my winter beater (which its great at being at) so I wanna find the issue, Ive gotten more than my moneys worth out of this car but cant part with it for some reason, been too good to me maybe in the 10 years Ive had it.
Its been near 50F outside the past couple days so my days of being able to crank/no-start and finding the culprit may be coming to an end this year. As it keeps starting fine.
This made me think coolant temp sensor or IAT sensor. I verified the coolant temp reading was accurate to ambient. Intake air temp wouldnt give me a number, I unplugged it and the car threw a code for it and battery light came on (only charging system at 13.5 volts) so it appears IAT sensor is at least doing something. Not sure if I should pursue that further. My sister has an 05 neon, so most things I can easily steal for an afternoon to verify any guesses I may have.
Grounds, or PCM is all I can think of now.
Last week, First try it didnt start, so I put a jumper cable from the neg battery terminal to a stud from the shock tower and it fired up fine, hard to say if that worked or was just a coincidence but Ill try it again or even during cranking with a helper. If I get the chance that is.
Anyway thats where Im at, just thought Id share this with you, and will update on anything new. I dont like firing new parts all over a problem, I really want to find the culprit.