Car struggles to crank when warm/hot
Discussion
Zad said:
What car is it? Sounds like the starter motor is on its way out.
306 GTI engine.. starter seems fine the rest of the time, spins up no problem in the morning, etc. Just a problem when hot?AC43 said:
Crank sensor?
If it spins fast but doesn't catch when hot it's often that.
Thought it might be this, as it sometimes cuts out approaching roundabout/lights too. It isn't spinning fast though, cranks very slowly, like a dying battery.If it spins fast but doesn't catch when hot it's often that.
veevee said:
Thought it might be this, as it sometimes cuts out approaching roundabout/lights too. It isn't spinning fast though, cranks very slowly, like a dying battery.
Yep, I've had it before. Jumping it might well get it started, or leave it to cool for a bit. In a push, tipping a bottle of water over the starter might work.But changing the starter certainly will work...
rigga said:
High resistance in the cabling to the starter, gets worse when hot, high resistance equals lower voltage, check and clean your connections and possibly replace the cables, its a problem I've known on my Griffith, and there was a popular add on "hot start kit "
A pint of Internet beer says its this!?OP, Prophet of Doom here, I hope your problems turn out to be a starter and wiring / cps issue but the only time I experienced very similar symptoms it was the bottom end about to cry enough!
Basically the engine was trying to partially seize when hot hence the cutting out at idle and slow cranking until it had cooled a bit. At the time the worlds internet experts were convinced the problems were a starter motor / carburetor issue, as was the supplying dealer, until it spun a rod bearing a few days after it had been "fixed"!!
Basically the engine was trying to partially seize when hot hence the cutting out at idle and slow cranking until it had cooled a bit. At the time the worlds internet experts were convinced the problems were a starter motor / carburetor issue, as was the supplying dealer, until it spun a rod bearing a few days after it had been "fixed"!!
I Does it struggle like this?
http://youtu.be/BICP1fKwBU0
I had this issue on my old 911, it would start absolutely fine when the engine was cold but would struggle if it was up to temperature.
How old is your battery? My issues eventually lead to a dying battery, once I replaced it the problem was gone. If you can get hold of a mate's battery then give that a go before you splash out on one.
http://youtu.be/BICP1fKwBU0
I had this issue on my old 911, it would start absolutely fine when the engine was cold but would struggle if it was up to temperature.
How old is your battery? My issues eventually lead to a dying battery, once I replaced it the problem was gone. If you can get hold of a mate's battery then give that a go before you splash out on one.
rigga said:
High resistance in the cabling to the starter, gets worse when hot, high resistance equals lower voltage, check and clean your connections and possibly replace the cables, its a problem I've known on my Griffith, and there was a popular add on "hot start kit "
i had this on a golf , replaced the battery and earth cables with some thicker stuff and its been fineKrikkit said:
I'd hedge a bet on crank sensor to be honest, they're a common problem in Peugeot engines of that vintage...
Otherwise starter, classic issue.
How would a dodgy crank sensor stop the engine turning over quickly? It may prevent it starting, but I can't see it affecting cranking speed at all.Otherwise starter, classic issue.
Tim
rigga said:
High resistance in the cabling to the starter, gets worse when hot, high resistance equals lower voltage, check and clean your connections and possibly replace the cables, its a problem I've known on my Griffith, and there was a popular add on "hot start kit "
This /\/\CPS will NOT make it turn over slowly
Could be starter wires but being a pug my betting is on an earth issue, usually the one from the gearbox to under the battery tray, after that i'd drop test the main starter wire then every earth you can find, a quick check with a jump lead from the battery neg to the engine block when it happens will diagnose the earths, if the all test out fine i'd suspect the starter itself.
Had the same issues with my Smart Roadster recently. Cuts out when coming to a stop sometimes when the engine is beginning to warm up.
It'll turn over but won't fire up. After 20 minutes or so it'll start up and be good as gold.
Reading up on it and it was the Crank Position sensor. Had it changed and its now working perfectly fine.
It'll turn over but won't fire up. After 20 minutes or so it'll start up and be good as gold.
Reading up on it and it was the Crank Position sensor. Had it changed and its now working perfectly fine.
Sycamore said:
Had the same issues with my Smart Roadster recently. Cuts out when coming to a stop sometimes when the engine is beginning to warm up.
It'll turn over but won't fire up. After 20 minutes or so it'll start up and be good as gold.
Reading up on it and it was the Crank Position sensor. Had it changed and its now working perfectly fine.
Turns over SLOW as the OP or just turns over normaly but wont start ?It'll turn over but won't fire up. After 20 minutes or so it'll start up and be good as gold.
Reading up on it and it was the Crank Position sensor. Had it changed and its now working perfectly fine.
S0 What said:
Sycamore said:
Had the same issues with my Smart Roadster recently. Cuts out when coming to a stop sometimes when the engine is beginning to warm up.
It'll turn over but won't fire up. After 20 minutes or so it'll start up and be good as gold.
Reading up on it and it was the Crank Position sensor. Had it changed and its now working perfectly fine.
Turns over SLOW as the OP or just turns over normaly but wont start ?It'll turn over but won't fire up. After 20 minutes or so it'll start up and be good as gold.
Reading up on it and it was the Crank Position sensor. Had it changed and its now working perfectly fine.
Sycamore said:
The more I tried to start it, the gradually slower it would get, so I imagine it's down to the battery draining ? It only happened maybe twice a week so was frustrating to try and pin point the problem.
So no your CPS did NOT make the car hard to crank over just the battery going flat did, as i said CPS will NOT make the car slow to turn over, so the OPs problem will not be the CPS.Gassing Station | General Gassing | Top of Page | What's New | My Stuff