BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
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 94 caprice won't stay running

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Posts : 2
Join date : 2012-04-30

PostSubject: 94 caprice won't stay running   Mon Apr 30, 2012 1:51 am

My 94 caprice runs for a good 10 min then dies on me, seems like when the car is warmed. It usually takes about an hour for the car to start back up, seems like when the car is cooled.When trying to crank it I didnt see any spark from spark wires. I got new spark plugs w/o the wires, replaced the ignition coil, the ignition control module, and now the map sensor. So where am I, is it the distributor, any other sensors? oh yeah its a 94 caprice with lt1
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Posts : 4287
Join date : 2009-03-20
Location : Revere, MA

PostSubject: Re: 94 caprice won't stay running   Mon Apr 30, 2012 6:15 am

When it's running are you driving it? or just idling?

Are you saying only when it's warmed you lose spark?

That doesnt sound right but you need to clarify what your say

Did you see spark (by whatever method your using) when its cold & starts?

I had the sensor in the waterpump (ECT?) go & it would run cold & misfire & stumble BAD when warmed.

Never had to replace a MAP....maybe you should diagnos more before throwing parts.

BUT....against that statement....a ECT sensor is cheap


96BBB 28K 3.42 Bolt-ons
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95 Black WB4
96 Black WB4 No holes in this
95BBB 189K 3.08 Old DD Matt. Cool
Whine..eee...Silver LS6
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Posts : 2
Join date : 2012-04-30

PostSubject: Re: 94 caprice won't stay running   Mon Apr 30, 2012 5:04 pm

I can be either driving or have it parked running, and its always Bout 10 minutes it will die. The guy who works for good year tires in my apartment complex told me to unplug one of my spark plug wires to see if I get a spark when trying to start the car, and when trying to crank the car up we didn't see any sparks. All the parts that I replaced so far is the map sesor, ignition coil and the ignition control module. Is it the distributor?
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Posts : 2133
Join date : 2011-01-11
Age : 36
Location : Warren, MA

PostSubject: Re: 94 caprice won't stay running   Mon Apr 30, 2012 5:49 pm

Sounds like it's dying once it reaches closed loop. Did you try the MAF?
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BADASS of New England :: 91-96 B & D-body tech :: Problems / Maintenance-
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