Question about 1991 Oldsmobile Ninety Eight Regency

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The engine shut down while driving, any ideas?

Ignition, fuel pump?

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Crank shaft position sensor

Posted on Mar 18, 2009

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Engine shuts off after driving 45 min when parking in reverse.But 15 min before this engine and slippery road icon comes on.2 hrs later car starts and drives normal then shuts off again 45 min later.


most commonly found problem relates to an electronic component heating up and shutting down. Have you checked to confirm there is fuel pressure when the vehicle shuts off. Is the check engine light on. Have you checked codes ? I suggest hooking up a fuel pressure gauge and letting vehicle run till it shuts off while monitoring the fuel pressure. If you loose fuel pressure, next step is to confirm there power going to the pump, if there is power going to the pump with no fuel pressure replace pump. Another suggestion would be to check for spark when vehicle stops running to eliminate an ignition problem. good luck

Aug 17, 2015 | 2008 Toyota Highlander

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Why does my 1995 Lexus ES300 continuously stop when I drive it? I have run out of ideas


When the engine stalls;
Test for spark (ignition)
Test for fuel pressure & check fuel pump volume

Dec 30, 2014 | 1995 Lexus ES 300

1 Answer

My 1999 the engine keeps just shut off while driving down the road the engine keeps turning but wont crank I put some engine starter in the carb.and it tried to start.could it be the fuel pump


if it was the fuel pump engine should start with starter spray at least for a second or two, so, it sounds like your fuel pump is bad.
turn ignition to run and try hearing the pump run.

Dec 17, 2014 | Cars & Trucks

1 Answer

What would be the cause of engine shutting down while it driving


2 posabilaties fuel pump or bad singlbord
teh singlebord or PCM is pron to temature failure

Feb 13, 2014 | 1994 Chrysler New Yorker

1 Answer

Engine shuts down


The only way to know for sure is to hook a gauge to the rail and check the fuel pressure when it won't start.
Sitting for a few minutes and restarting is normally a sign of a relay or coil cooling off.
There should be a EEC relay that powers the dist module and ECM.
I know you said you have spark, but it could be something else
related.
Also, if you have spark at the right time and no fuel pressure, you should be able to use starting fluid to substitute.
I don't suppose you have dual tanks and the switching valve is the problem ?

Jul 05, 2012 | Ford Cars & Trucks

1 Answer

1993 mercury village engine was running was driving down road it shut down, check engine light was on , friend said to change fuel pump and still no spark at engine plugs, what should i try next? is there...


Fuel pumps don't have anything to do with spark. Have the codes read. My guess you lost the crank sensor, ignition module, or coil. Check your fuses also.

Sep 04, 2011 | 1993 Mercury Villager

1 Answer

Changed fuel pump. Fuel pump does not come on and it's not the relay. What could the problem be? Was driving down the road and the engine shut down, but still turns over, just won't crank because...


do you have ignition fire? does the check engine/service engine soon light come on when when you turn the key on? can a scan tool communicate with the ECM? there are several things to check if you have no power to the fuel pump because the fuel pump relay is controlled by the ECM.

Jul 30, 2011 | 1998 Chevrolet S-10 Pickup

2 Answers

What is ASD RELAY


The power supplied to the fuel pump, ignition coil, fuel injectors, and parts of the power module is controlled by the logic module through the Automatic Shutdown Relay (ASD); the idea is to shut off fuel pressure and the ignition systems when the key is turned off to prevent fires, dieseling, and other problems.



The ASD relay is closed (allowing power to flow through it) when the ignition is first turned on. If the signal from the ignition reference is lost while the engine is running, or if the turbo boost pressure reaches and exceeds the over boost cut-off point, the logic module cuts power to the ASD, which in turn removes power from the fuel pump, ignition coil, injectors and those parts of the power module. This causes the engine to shut down.


Failure of the automatic shutdown relay is often shown as inexplicable stalling or refusal to start.

Mar 09, 2011 | Dodge Caravan Cars & Trucks

2 Answers

The Hombre cuts off without warning while driving. Then it cranks back up.


sounds like a fuel filter problem, when the engine shuts down,the blockage settles, then when driving, the fuel pump draws the blockage back.......check fuel filters

Aug 02, 2009 | Isuzu Hombre Cars & Trucks

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