2003 4Runner rough cold start
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2003 4Runner rough cold start
03 4Runner SR5, v8, 40k miles.
The other evening I started the truck after it was sitting in the driveway for about 6 hours. The engine vibrated pretty noticeably for about 3 seconds, then was fine. This morning, cold start, same thing, although the vibration was a little more noticeable, but still for about 3 seconds. Drove it about 20 minutes, parked for 5 minutes, restarted, no vibration. It's definitely a cold start thing. Weather temps are in the 70s/80s.
I would describe the vibration as being very rough and then winding up to no vibration at all. I wonder if it's a rough cylinder? Something electrical?
Any ideas what's causing the rough start? $-wise, what are we talking worst and best-case scenarios? Of course the warranty just ran out 2 months ago...
Update:The rough cold start has not happened again in the last 4 days... I don't necessarily believe in problems "going away."
The other evening I started the truck after it was sitting in the driveway for about 6 hours. The engine vibrated pretty noticeably for about 3 seconds, then was fine. This morning, cold start, same thing, although the vibration was a little more noticeable, but still for about 3 seconds. Drove it about 20 minutes, parked for 5 minutes, restarted, no vibration. It's definitely a cold start thing. Weather temps are in the 70s/80s.
I would describe the vibration as being very rough and then winding up to no vibration at all. I wonder if it's a rough cylinder? Something electrical?
Any ideas what's causing the rough start? $-wise, what are we talking worst and best-case scenarios? Of course the warranty just ran out 2 months ago...
Update:The rough cold start has not happened again in the last 4 days... I don't necessarily believe in problems "going away."
#2
Originally Posted by influx99
03 4Runner SR5, v8, 40k miles.
The other evening I started the truck after it was sitting in the driveway for about 6 hours. The engine vibrated pretty noticeably for about 3 seconds, then was fine. This morning, cold start, same thing, although the vibration was a little more noticeable, but still for about 3 seconds. Drove it about 20 minutes, parked for 5 minutes, restarted, no vibration. It's definitely a cold start thing. Weather temps are in the 70s/80s.
I would describe the vibration as being very rough and then winding up to no vibration at all. I wonder if it's a rough cylinder? Something electrical?
Any ideas what's causing the rough start? $-wise, what are we talking worst and best-case scenarios? Of course the warranty just ran out 2 months ago...
Update:The rough cold start has not happened again in the last 4 days... I don't necessarily believe in problems "going away."
The other evening I started the truck after it was sitting in the driveway for about 6 hours. The engine vibrated pretty noticeably for about 3 seconds, then was fine. This morning, cold start, same thing, although the vibration was a little more noticeable, but still for about 3 seconds. Drove it about 20 minutes, parked for 5 minutes, restarted, no vibration. It's definitely a cold start thing. Weather temps are in the 70s/80s.
I would describe the vibration as being very rough and then winding up to no vibration at all. I wonder if it's a rough cylinder? Something electrical?
Any ideas what's causing the rough start? $-wise, what are we talking worst and best-case scenarios? Of course the warranty just ran out 2 months ago...
Update:The rough cold start has not happened again in the last 4 days... I don't necessarily believe in problems "going away."
Injector cleaner is cheap and you should be cleaning every 12-15k anyway.
David
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