Car sometimes has trouble starting
08-14-24, 09:18 AM
#1
Rookie
Thread Starter
Car sometimes has trouble starting
Hello everyone,
So I've hit a solid concrete wall. Recently my car has decided to take its time starting. There are times where it starts right up and other times where i have to crank it a few times. I have replaced and done a few things to try and diagnose and fix the issue such as:
-New spark plugs
-New fuel pump
-New fuel injectors
-Alternator and starter were replaced no more than 20000 miles ago.
-Battery is also brand new.
-Most of the sensors on it are OEM and fairly new as well. (Cam, Crank, Knock, MAF, and a few others as well)
I've put a scanner on it and the only thing that comes up is just an O2 sensor which im already aware of (just a wiring issue that ive just been pushing to the side for quite awhile)
. I would really appreciate any advice or help. Thanks
So I've hit a solid concrete wall. Recently my car has decided to take its time starting. There are times where it starts right up and other times where i have to crank it a few times. I have replaced and done a few things to try and diagnose and fix the issue such as:
-New spark plugs
-New fuel pump
-New fuel injectors
-Alternator and starter were replaced no more than 20000 miles ago.
-Battery is also brand new.
-Most of the sensors on it are OEM and fairly new as well. (Cam, Crank, Knock, MAF, and a few others as well)
I've put a scanner on it and the only thing that comes up is just an O2 sensor which im already aware of (just a wiring issue that ive just been pushing to the side for quite awhile)
. I would really appreciate any advice or help. Thanks
08-16-24, 12:05 PM
#2
Hello everyone,
So I've hit a solid concrete wall. Recently my car has decided to take its time starting. There are times where it starts right up and other times where i have to crank it a few times. I have replaced and done a few things to try and diagnose and fix the issue such as:
-New spark plugs
-New fuel pump
-New fuel injectors
-Alternator and starter were replaced no more than 20000 miles ago.
-Battery is also brand new.
-Most of the sensors on it are OEM and fairly new as well. (Cam, Crank, Knock, MAF, and a few others as well)
I've put a scanner on it and the only thing that comes up is just an O2 sensor which im already aware of (just a wiring issue that ive just been pushing to the side for quite awhile). I would really appreciate any advice or help. Thanks
So I've hit a solid concrete wall. Recently my car has decided to take its time starting. There are times where it starts right up and other times where i have to crank it a few times. I have replaced and done a few things to try and diagnose and fix the issue such as:
-New spark plugs
-New fuel pump
-New fuel injectors
-Alternator and starter were replaced no more than 20000 miles ago.
-Battery is also brand new.
-Most of the sensors on it are OEM and fairly new as well. (Cam, Crank, Knock, MAF, and a few others as well)
I've put a scanner on it and the only thing that comes up is just an O2 sensor which im already aware of (just a wiring issue that ive just been pushing to the side for quite awhile)
. I would really appreciate any advice or help. Thanks- Coil wires
- Coils
- Igniter
- ECM
First, you need to check your coil wires; resistance on each wire should not be more than 25 kohms. Replace the wires if it is more than 25kohms.
Second, check your coils.
If everything checks out. Get back to me.
08-18-24, 06:23 PM
#3
Instructor
s it just cranking over slowly? Or is it cranking at full speed and just not starting til it's cranked over a few times? If it's cranking slowly, then it's going to be on the starting end of things, could be a bad battery cable or something. If it's cranking at full speed but not starting til it's cranked over a few times then that's am issue with engine. Possible the fuel pressure isnt holding when you turn it off, so it's to build pressure when your cranking it over, it could be a few things.help me with the symptoms and I will try to help upi point the issue.
08-27-24, 10:02 AM
#4
Rookie
Thread Starter
So i just tested the coil packs(with a cold engine). From the terminals i got 0.8 ohms on all three packs. From the second test i got 12 kohms. So it was a bit over on that first test, does that matter or no?
And to answer you question dwoods, its cranking at full speed.
Really appreciate the help
And to answer you question dwoods, its cranking at full speed.
Really appreciate the help
08-27-24, 07:23 PM
#5
So i just tested the coil packs(with a cold engine). From the terminals i got 0.8 ohms on all three packs. From the second test i got 12 kohms. So it was a bit over on that first test, does that matter or no?
And to answer you question dwoods, its cranking at full speed.
Really appreciate the help
And to answer you question dwoods, its cranking at full speed.
Really appreciate the help
Check both male and female connectors and its wiring also. Attached is a link to a very contact cleaner.
Yesterday, 06:37 PM
#6
Rookie
Thread Starter
s it just cranking over slowly? Or is it cranking at full speed and just not starting til it's cranked over a few times? If it's cranking slowly, then it's going to be on the starting end of things, could be a bad battery cable or something. If it's cranking at full speed but not starting til it's cranked over a few times then that's am issue with engine. Possible the fuel pressure isnt holding when you turn it off, so it's to build pressure when your cranking it over, it could be a few things.help me with the symptoms and I will try to help upi point the issue.
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