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1991 240 dies when warm - tried both fuel pumps, relay, regulator

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MrMorones
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1991 240 dies when warm - tried both fuel pumps, relay, regulator

Post by MrMorones » Mon Apr 24, 2017 7:23 pm

Hi all. I need some help. I have a 91 240. After car warms up my car will die. I have had it die while idle, while accelerating, or while putting in gear after parked.

I have replaced fuel pump(external), fuel filter, in tank pump, strainer, fuel pressure regulator, and fuel relay.

What am I missing? I am losing sleep over this. Please any help?
Last edited by matthew1 on Mon Apr 24, 2017 8:06 pm, edited 1 time in total.
Reason: fixed title - please, no "Help!" or !!!! in titles

lummert
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Re: 1991 240 dies when warm - tried both fuel pumps, relay, regulator

Post by lummert » Mon Apr 24, 2017 9:07 pm

Ignition Power Stage?
1988 Volvo 760 Turbo Wagon

93Regina
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93Regina

Re: 1991 240 dies when warm - tried both fuel pumps, relay, regulator

Post by 93Regina » Mon Apr 24, 2017 10:22 pm

MrMorones wrote:
Mon Apr 24, 2017 7:23 pm
What am I missing?
Does it have fuel...does it have spark...

joedrt77
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Re: 1991 240 dies when warm - tried both fuel pumps, relay, regulator

Post by joedrt77 » Wed May 03, 2017 1:58 pm

My 90 740 was doing that, replaced 1323592 Noise Suppression Relay (AKA: Radio Suppression Relay or "RSR"). fixed it, replaced relay and relay connector, both relay and connector were bad, I just used a relay with the same specs., cost a few bucks, works the same as the 65 dollar one.
Last edited by joedrt77 on Wed May 03, 2017 2:31 pm, edited 1 time in total.

lummert
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Re: 1991 240 dies when warm - tried both fuel pumps, relay, regulator

Post by lummert » Wed May 03, 2017 2:15 pm

joedrt77 wrote:
Wed May 03, 2017 1:58 pm
My 90 740 was doing that, replaced 1323592 Noise Suppression Relay (AKA: Radio Suppression Relay or "RSR"). fixed it, I just used a relay with the same specs., cost a few bucks, works the same as the 65 dollar one.
Radio suppression relay supplies power to the injectors, among other things.
1988 Volvo 760 Turbo Wagon

dougburgy
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dougburgy

Re: 1991 240 dies when warm - tried both fuel pumps, relay, regulator

Post by dougburgy » Mon May 15, 2017 2:32 pm

IAC (idle air control)? Sounds a lot like symptoms of bad IAC, which is up on throttle body. Maybe research that, specific to your car and see if others have reported same. Check all vacuum lines and electrical plugs in engine bay. Injectors, spark plug wires (at plug and dist), etc.

When you say it dies...do you mean like engine stalls...but all other electrical seems fine?

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