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98 Explorer Starting Problem
1998 Explorer with Big V6 2x2 drive - 140,000 miles
I'm having a problem with my Explorer and have had my primary mechanic come up with nothing after 2 attempts. It won't start after being driven for awhile in warm to hot weather and the AC has been running. It will turn over, but no sign of ignition - if it were a carburetor it sounds and act's like vapor lock. What has me baffled even if you leave it and let is cool all the way down ie over night - sometimes it won't start even then - which leaves me thinking that it is not heat or AC linked. Battery fine, Alternator is putting out correct voltage and amperage. Anybody with thoughts or similar problems. |
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#2
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98 Explorer Starting Problem
"MS Jordan" > wrote in message 4... > 1998 Explorer with Big V6 2x2 drive - 140,000 miles > > I'm having a problem with my Explorer and have had my primary mechanic come > up with nothing after 2 attempts. > > It won't start after being driven for awhile in warm to hot weather and the > AC has been running. > > It will turn over, but no sign of ignition - if it were a carburetor it > sounds and act's like vapor lock. Does it have spark? You say "no sign of ignition" and then say "vapor lock." I assume the engine is cranking if you are saying this. > > What has me baffled even if you leave it and let is cool all the way down > ie over night - sometimes it won't start even then - which leaves me > thinking that it is not heat or AC linked. > > Battery fine, Alternator is putting out correct voltage and amperage. Are you absolutely certain that the battery is OK? Did you check each cell with a hydrometer after it has set for a while? I had a situation on my '97 where sometimes it would start and sometimes it would not. It turned out that two of my battery's cells were a bit weak. I was sure the battery was not the problem. What I do think was the problem was a dirty connection on the crankcase position sensor which on my particular engine (4.0 V6 OHC) is in the front below the crankshaft. I cleaned the connection and replaced the battery and the problem is gone. I did not have spark but the coil checked out OK and the voltage to the coil was OK too. So, either the computer would not allow ignition because of a low voltage situation or it would not allow it because it did not know the crankcase position. Two easy things to check anyway... Good luck. > > Anybody with thoughts or similar problems. |
#3
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98 Explorer Starting Problem
Have you tried cleaning the battery terminals?
"MS Jordan" > wrote in message 4... > 1998 Explorer with Big V6 2x2 drive - 140,000 miles > > I'm having a problem with my Explorer and have had my primary mechanic > come > up with nothing after 2 attempts. > > It won't start after being driven for awhile in warm to hot weather and > the > AC has been running. > > It will turn over, but no sign of ignition - if it were a carburetor it > sounds and act's like vapor lock. > > What has me baffled even if you leave it and let is cool all the way down > ie over night - sometimes it won't start even then - which leaves me > thinking that it is not heat or AC linked. > > Battery fine, Alternator is putting out correct voltage and amperage. > > Anybody with thoughts or similar problems. -- Posted via a free Usenet account from http://www.teranews.com |
#4
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98 Explorer Starting Problem
Is there a fuel pump relay like there is for the 94? My 94 had same
problem which turned out to be fuel pump relay located under the hood. Just a long shot ...saw you had no solution posted. Good luck. Sam in Raleigh. |
#5
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98 Explorer Starting Problem
1) Battery less than a 18 months old, so pretty sure that is not the
problem 2) Battery cables and terminal - when it 1st occured I thought that was the problem - so new cables and gave the battery posts a good cleaning 3) When the engine cranks it pumps gas, so agin I pretty sure that is not the program I will give the issue of timing a look - thanks for the help and suggestions |
#6
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98 Explorer Starting Problem
Problem solved (I think)
The suggestion from Ulysses on the Crankcase Postion Sensor turned out to be intermittant. New sensor - running car Thanks for the help |
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