Hello!
I recently purchased an 850 GLT '95, had the timing belt and water pump replaced. when i bought it, the starter was turning very slowly, so i had it rebuilt, now it turns faster, but the car still takes 3-5 seconds to start, sometimes quicker, but that doesnt occur in any pattern.
it also has some gas smell coming through the air vents.
i did some research and some articles point to the evap system, others to the fuel filter, fuel pump, FPR, check valve and so on.
i'm new to volvos so i dont now if these are actually related, so i'm pretty lost.
Any tips on how i can diagnose these problems will be welcomed.
also, it has the CEL light on, but i didnt have the time to read the codes yet.
850 N/A Long crank/Gas smell
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wheelsup
- Posts: 1296
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- Location: Raleigh, NC
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I'm not a troubleshooting expert (for starters).
How does it run once started? Does it run well? Any difference if you start it, run it a few mins, shut it down, then restart immediately versus it sits overnight?
I'm actually currently going through this right now (somewhat). In my case, the issue is if the car sits for an extended time period (hours normally) it will be really rough to start but runs great once running. Amazingly, sometimes the car will sit for days and start immediately which makes it really confusing to diagnose.
I've started with replacing the fuel pump relay, that had no effect, next I am replacing the fuel pump as I hear there is a check valve in the pump itself that is supposed to keep pressure in the rail up to be available for starting. That hasn't been confirmed by anyone it's just something I happened to find somewhere.
In your case if you're getting a gas smell in the vents that tells me you're getting fuel into the motor, and the issue may be more with spark then fuel. Again I'm not a mechanical nor a professional troubleshooter. First thing I did personally was pull the plugs, look at them, and re-gap to 0.028".
How does it run once started? Does it run well? Any difference if you start it, run it a few mins, shut it down, then restart immediately versus it sits overnight?
I'm actually currently going through this right now (somewhat). In my case, the issue is if the car sits for an extended time period (hours normally) it will be really rough to start but runs great once running. Amazingly, sometimes the car will sit for days and start immediately which makes it really confusing to diagnose.
I've started with replacing the fuel pump relay, that had no effect, next I am replacing the fuel pump as I hear there is a check valve in the pump itself that is supposed to keep pressure in the rail up to be available for starting. That hasn't been confirmed by anyone it's just something I happened to find somewhere.
In your case if you're getting a gas smell in the vents that tells me you're getting fuel into the motor, and the issue may be more with spark then fuel. Again I'm not a mechanical nor a professional troubleshooter. First thing I did personally was pull the plugs, look at them, and re-gap to 0.028".
1995 850 GLT Wagon w/ 200,000 miles
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fredt2
- Posts: 45
- Joined: 26 July 2022
- Year and Model: 850 GLT 1995
- Location: Brazil
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Hi,
Firstly, after it starts, it runs great, and I checked obd codes and got nothing engine or injection related, sometimes it sits overnight and starts right up, and sometimes it takes long as I described.
Secondly, I heard that you don't actually need to change the fuel pump, you just got to install a check valve along the fuel line, try that before you get a new one, and if it works, it will be much cheaper than changing the entire pump.
Anyway, I'll be putting a check valve in mine myself, and when I do that I'll put the results here
Firstly, after it starts, it runs great, and I checked obd codes and got nothing engine or injection related, sometimes it sits overnight and starts right up, and sometimes it takes long as I described.
Secondly, I heard that you don't actually need to change the fuel pump, you just got to install a check valve along the fuel line, try that before you get a new one, and if it works, it will be much cheaper than changing the entire pump.
Anyway, I'll be putting a check valve in mine myself, and when I do that I'll put the results here
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