Car takes long so start after sitting for a while

Tiny
MOUTONOV@GMAIL.COM
  • MEMBER
  • 2009 RENAULT LOGAN
  • 187,000 MILES
The car was driving fine all along, I have a leak on one of the hoses which cause me to lose coolant. However, I top up the radiator extension bottle before every drive. The car has never overheated so I don't think it is the gasket or head. However, last week, my car started taking longer to start after sitting for a while. Now I have to crank the engine until the battery is almost flat before the car eventually starts, but then shuts off immediately. I then have to start it a few more times and keep it on a light rev before it eventually idles. It idles at around 500 RPMs. Once the car has warmed up, it drives perfectly with no misfiring. However, once the car cools down, I have to go through the same process.
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Wednesday, July 21st, 2021 AT 3:10 AM

7 Replies

Tiny
KASEKENNY
  • EXPERT
If the engine needs coolant each time you drive it then you have a leak. We just need to find where the leak is. Given the other issues, I suspect the head gasket is the issue, sorry to say.

So that is where we need to start. We do not have a manual on this engine but we have guides that will help figure this out.

Here are a couple that will get us started. Let's start with checking for a head gasket issue with these and see what we find.

https://www.2carpros.com/articles/head-gasket-blown-test

https://www.2carpros.com/articles/radiator-pressure-test

https://www.2carpros.com/articles/car-is-leaking-coolant

Once we know the head gasket is in fact okay, we need to use the next two guides on how to pressure check it and look for leaks.

Please run through this info and let us know what you find. Thanks
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Thursday, July 22nd, 2021 AT 10:17 AM
Tiny
MOUTONOV@GMAIL.COM
  • MEMBER
Do you think it could perhaps be the fuel filter that is clogged up? I am asking because the car has no problems when driving, no misfiring, and if I start the car within 2 hours of switching it off, it starts right up with no problems. The problem is that I struggle to start the car when it has been sitting for +/- 4 hours. If it has been sitting for 8 hrs or more, like overnight, it's very difficult to get it started. This morning I cranked the battery flat trying to get it started. It's a manual transmission so I tried to get it kick started. A friend of mine towed me so we could kick start my car. It still took so long, like not enough fuel was getting through perhaps. Eventually we stopped and I cranked again. With my battery charged back up I could now crank again. It started, then shut off, I tried again. It started, then shut off. A few more of those and I could eventually keep it from shutting off by keeping it on a light rev for about a minute. Then it idled and I drove to work with no problems. No misfiring. So now I go to my car every 2 hours while I'm at work so I can start and idle it for about 5 minutes so I don't have to struggle when I go home.

No murky milky presence in my oil, nor on the dipstick. No bubbles is my radiator expansion bottle. My radiator does not have a cap so I am unable to see in there. No misfiring, no wet spark plugs, no oil leaks, no overheating. So I am really struggling to understand how it could be the gasket. Do you think it could be with the fuel filter, pump or fuel pressure perhaps?
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Thursday, July 22nd, 2021 AT 11:48 PM
Tiny
KASEKENNY
  • EXPERT
That is a very good possibility but it may not just be a fuel filter issue but an overall fuel pressure issue so we should check it.

Here is a guide that will help with this:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

However, how much coolant are you adding to the system each day? You may not be getting coolant and oil mixing yet but if you are adding coolant then it has to be going somewhere and more then likely it is not much so the engine is able to "burn" it and turn it into steam and put it out the exhaust.

I would suggest still testing the head gasket just to be sure it is ok because you may be at the beginning of a failing head gasket.
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Friday, July 23rd, 2021 AT 6:22 AM
Tiny
MOUTONOV@GMAIL.COM
  • MEMBER
Hey there, thanks for the help. I played around and found the problem to be the crankshaft position sensor.
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Monday, July 26th, 2021 AT 6:43 AM
Tiny
KASEKENNY
  • EXPERT
That is great info. Thanks so much for coming back and letting us know what you found as that info will surely help others.

Thanks for using 2CarPros.
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Monday, July 26th, 2021 AT 6:55 PM
Tiny
MOUTONOV@GMAIL.COM
  • MEMBER
Hi there. I was actually mistaken. It was not the crankshaft positioning sensor. It actually was the coolant temperature sensor.

I now have another problem.

When I reverse, not when I put the gear into reverse, I have no problem with putting the gear into reverse, but when I release the clutch and give it a little has it makes a kind of grinding noise.

Same noise comes up when I am clutch braking, like when I slow the car without braking, using the clutch. For instance, I am driving in 5th gear at 80km/h and I want to slow down a bit, I just release my clutch without giving any gas, as the car slows and approaches 70km/h it starts making a weird grinding noise and stops when it gets to 60km/h. Same thing happens in every gear but at different speeds. What could this be?

This problem only started after coming back from a mechanic that took the car to fix the slow start problem. Not a very trusted mechanic I might add.

He told me he fiddled with some setting to enable the car to start faster while we wait to replace the coolant temp sensor. But then the car started driving really badly, misfiring all over the place. So he came back and removed the negative battery coupling and placed it in the positive for 10 minutes, started the car and proceeded to keep revving the car. That sorted out the misfiring problem but that grinding noise keeps persisting.

I am thinking that this mechanic probably did something to my car that broke something in the transmission or gearbox but he does not want to tell me because he will be held liable.

I regret asking this guy to work on my car because it seems the car is in worse condition than it was before.

I only had a slow start problem, now it seems I also have a transmission problem. Or is there perhaps another explanation?
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Monday, August 2nd, 2021 AT 1:11 AM
Tiny
BORIS K
  • EXPERT
Hello,

I would suggest to first check your transmission oil level.

How to do this, guide showing differential.

https://www.2carpros.com/articles/differential-gear-oil-fluid-check

The YouTube shows a Renault Clio which is very similar to your vehicle.

https://youtu.be/XUqYpnW8mVk

Also check if the noise from the transmission changes when vehicle is idling and you press the clutch and when released.

Please let us know how you get along.

Cheers, Boris
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Monday, August 2nd, 2021 AT 3:24 AM

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