Slow/hard cranking when engine is cold
10-19-2017, 02:42 PM
#1
Burning Brakes
Thread Starter
Slow/hard cranking when engine is cold
I'm having a slow/hard cranking situation when the engine is cold. When I say cold, I mean room temperature (70-80 degrees). I key on, let the fuel pump run and turn off, and then crank. The engine turns over but it takes a few moments for the engine to fire and isn't a "clean" crank (feels labored). Once it's cranked, the engine runs fantastic (smooth idle, strong power, etc.). After the engine warms up, it cranks beautifully.
In short, first crank of the day is slow/hard. Not really an "issue" just wondering if anyone else has run into this and it's something that can be resolved/lessened.
In short, first crank of the day is slow/hard. Not really an "issue" just wondering if anyone else has run into this and it's something that can be resolved/lessened.
Last edited by ChrisLSx; 10-19-2017 at 02:43 PM.
06-23-2019, 06:48 PM
#2
You need to have a battery load test to rule out a old battery,they are usually good for 3/4 years today,make sure the connections are tight and clean,how long have u used that starter.could be time to replace it.
06-25-2019, 11:23 AM
#3
Melting Slicks
I have almost the same issue. First crank of the day is always labored. Starter will crank and engine will want to fire but “sputters” briefly before finally turning over. Granted, this all opens in less than a second but notice it. Car will start perfectly thereafter. I’ve replaced the starter, plugs, wires. No codes etc. I’ve been meaning to get a fuel pressure gauge.
06-25-2019, 11:41 AM
#4
Moderator, Tech Contributor
Member Since: Sep 2013
Location: Cape Coral, Florida
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I have almost the same issue. First crank of the day is always labored. Starter will crank and engine will want to fire but “sputters” briefly before finally turning over. Granted, this all opens in less than a second but notice it. Car will start perfectly thereafter. I’ve replaced the starter, plugs, wires. No codes etc. I’ve been meaning to get a fuel pressure gauge.
06-25-2019, 11:46 AM
#5
Pro
Mine does the same thing. Always has. Still does it after a battery replacement, and still does it after letting the key sit in the "On" position for 5-10 seconds before cranking.
Hell my roomates C7 does a similar deal, it's battery is getting a bit old though.
Hell my roomates C7 does a similar deal, it's battery is getting a bit old though.
06-25-2019, 11:49 AM
#6
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MMMM ??...interesting !!
06-25-2019, 12:09 PM
#7
Melting Slicks
Same result. I need to get that fp gauge. But I’ve just been so busy fixing other things first. Haha.
06-25-2019, 01:41 PM
#8
Team Owner
I'm having a slow/hard cranking situation when the engine is cold. When I say cold, I mean room temperature (70-80 degrees). I key on, let the fuel pump run and turn off, and then crank. The engine turns over but it takes a few moments for the engine to fire and isn't a "clean" crank (feels labored). Once it's cranked, the engine runs fantastic (smooth idle, strong power, etc.). After the engine warms up, it cranks beautifully.
In short, first crank of the day is slow/hard. Not really an "issue" just wondering if anyone else has run into this and it's something that can be resolved/lessened.
In short, first crank of the day is slow/hard. Not really an "issue" just wondering if anyone else has run into this and it's something that can be resolved/lessened.
Last edited by K-Spaz; 06-25-2019 at 01:42 PM.
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