Stalling 94 V-6 4.0L
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New User
Joined: Feb 2002
Posts: 4
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Stalling 94 V-6 4.0L
I've got a '94 V-6 4.0L with 64k miles that stalls out when started and at stop lights. The dealer has no clue and has recommended an engine decarb which I don't think will help. Here's what I've done and checked: pulled engine codes and have lean banks #1 and #2 - the O2 sensors have been replaced, new fuel filter, checked spark plugs - all ok, new IAC valve, the dealer did a vacum check so there are no vacum leaks, new thermostat(the old one was stuck open), cleaned the MAF. I'm still getting lean bank codes and it's stalling. Any suggestions? Thanks.
Junior User
Joined: Jan 2002
Posts: 72
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From: Oshawa Canada
Stalling 94 V-6 4.0L
I would replace the coolant sensor. Make sure you replace the one for the computer, not the guage. The coolant sensor tells the computer what temp. the engine is, it then adjusts the fuel mixture for the temp. I am wondering if your coolant sensor is telling the engine that it is hotter than it is, this will make the engine run leaner than it is supposed to. Which could cause a stalling problem.
