Van Hard To Start After Using A/C

Tiny
PILOTBILL
  • MEMBER
  • 2000 MERCURY VILLAGER
  • 3.3L
  • V6
  • FWD
  • AUTOMATIC
  • 65,000 MILES
Hello Again, I asked the below question yesterday. The person that answered it asked about any engine codes. The Van does not show any engine codes. The SERVICE ENGINE LIGHT works like it should. When I first started having the below trouble, I took the Van to my local garage repairman. He looked the van over, but then told me that unless the onboard computer gives a engine code (WHICH IT'S NOT DOING) there is nothing he can do. He told me that if I wanted too, I could leave the Van for a few days, but it would be a hit and miss as to him being able to find the problem and fix it, not counting what it might cost me. PLEASE HELP.

Hello, I have a 2000 Mercury Villager Mini Van 3.3L. The problem I have is that every day I use the A/C the next morning when I try to start the van, the Radiator Fan turns on (THE VAN HAS SIT ALL NIGHT) and the van will not start. I have to keep turning the key on and off until the fan stop. Then when I try to start the van, the van won't start. The motor turns over real good, but it will not start. Sometimes it smells like the engine is flooded. If I wait a little while (LIKE A HOUR OR SO) the van will finally start. I do not have this problem, if I do not use the A/C. The problem started just a few weeks ago. I have the van for two(2) years now, up until now the van has run real good.

Hey PilotBill,

My colleague was probably asking for what are known as "soft codes." These won't set the check engine light and many shops won't check for them without being asked to because it requires them to push a few extra buttons on the Scantool.

However, let's try something a little different. First, pull the spark plugs after labeling the plug wires as to where they go. Then take a look at them. Do they look wet? Do they look glazed? Check the gap. There should be a sticker on the radiator/fan shroud that tells you what the gap should be. Finally, stick a Phillips screwdriver into the plug boot and hold the blade of the driver near something metal and watch for a spark. It should be a strong spark, bright blue or white. Watch the rhythm of the spark. It should be regular, not a like a conga drum (spark. Spark. Spark. Spark.- NOT sparkspark. Spark. Spark. Spark)

Also check the fuel pressure and look for leaks. Your van is fuel injected and there really shouldn't be a way it can flood. You should be able to borrow/rent a fuel pressure gauge from places like O'Reilly's and Autozone. Check the fuel pressure a few times. When you're not having the problem. While the engine is running fine. While you are having the problem.

Does the problem occur immediately-drive to the store and come out, or just overnight?

The problem only happens after the Van has set overnight. I can use the A/C On at times & Off at times and the Van will start right up no matter how many times I start the Van, but let it set overnight and that is when the problem shows up. If I don't use the A/C at all during the day, there is no problem starting the Van the next morning. PLEASE HELP
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Thursday, August 27th, 2015 AT 11:30 AM

3 Replies

Tiny
HMAC300
  • EXPERT
I answered this once but as I've pondered this for awhile the only thing that is logical to me is the ground to the battery/body and or engine is corroded as well as pcm ground wire is the same. It has to be that unless this vehicle was in a flood and if that is the case all bets are off.
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Thursday, August 27th, 2015 AT 12:23 PM
Tiny
PILOTBILL
  • MEMBER
Hello Again, The Van has never been in a flood. I know the history of the Van. My Mother-In-Law was given the Van from her brother about 6 years ago right before he died. He brought the Van new in August 2000. I still have all of the paper work that was done when he brought the Van and the paper work from when I Mother-In-Law got the Van. We brought the Van from my Mother-In-Laws estate when she died two(2) years ago. I was wrong about the mileage too. It has only 61,210 miles on it. Back to my question, what did you mean when you said to check the pcm ground wire. I have never heard of this before. Like I said, you can use the A/C all day long and no matter how many times you turn the van off during the day, it will start right back up, BUT YOU LET IT SET OVERNIGHT, IT WILL NO START THE NEXT MORNING. On the other hand, if you don't use the A/C at all during the day, when you turn the van off for rest of the evening. The next morning when you turn the key on, The Van will start right up on the VERY FIRST TRY. I am at a lost, PLEASE HELP
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Friday, August 28th, 2015 AT 11:44 AM
Tiny
HMAC300
  • EXPERT
What it sounds like is something isn't grounding out and normally the cause is a ground wire broken, corroded, etc. Check the grounds in the 3 places shown in pics. I really can't think of much more on this at all. If they are corroded just clean them with a wire brush put some dielectric compound on them and make sure they are tight not loose.
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Friday, August 28th, 2015 AT 12:01 PM

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