1995 Volvo 850 Fuel pump and relay parts

Post by **wheelsup** » 17 Jul 2022, 14:38

It has come time to replace these on my car.

Lots of price points here...but I admit for such an old car I am leaning towards the cheaper end.

For relay (I know Uro has not great rep, but it's a relay not suspension)

https://www.autozone.com/fuel-delivery/ ... 481396_0_0

Here is FCP's relay:

https://www.fcpeuro.com/products/volvo- ... -1#reviews

Note: my car has 87a and 87b, no 87. It's a 1995. Why?

I'd just like to replace the whole pump assembly unless you can think of a reason why not to:

https://www.ebay.com/itm/333858394175?m ... media=COPY

Fuel pump gasket seal (not sure if pump above includes it), FCP has cheaper if I buy their relay:

https://www.ebay.com/itm/195043648410

Am I shooting my self in the foot here or what are your thoughts? FCP sells a name brand relay for $40 and a new pump for $100, not sure if that includes check valve which I believe is the problem with my car.

Post by **abscate** » 17 Jul 2022, 15:16

Relay is a junkyard item honestly. Probably lots have spares here, too. I do

Post by **wheelsup** » 17 Jul 2022, 17:51

abscate wrote: ↑17 Jul 2022, 15:16 Relay is a junkyard item honestly. Probably lots have spares here, too. I do

I'd totally do that normally but at this point I don't want to get stuck and have to carry tools around with me.

At 27 years old it's starting to get up there and I've got a new Maverick on my radar, it just needs to get me to the point where they start shipping again haha.

Post by **jreed** » 18 Jul 2022, 05:36

There is an interesting description of the differences between pins 87 / 87A / 87B on relays by Rob Siegel here:
https://www.hagerty.com/media/maintenan ... ys-part-2/
Siegel writes mostly about BMW but the electrical information about Bosch components is helpful for Volvos too. He has written some good books about car repair such as "Hack Mechanic"... a highly recommended read.

Post by **foggydogg** » 18 Jul 2022, 09:42

wheelsup wrote: ↑17 Jul 2022, 17:51
abscate wrote: ↑17 Jul 2022, 15:16 Relay is a junkyard item honestly. Probably lots have spares here, too. I do
I'd totally do that normally but at this point I don't want to get stuck and have to carry tools around with me.

At 27 years old it's starting to get up there and I've got a new Maverick on my radar, it just needs to get me to the point where they start shipping again haha.

Plus one with Dr. Abscate; Robert Spinner always looks for the date code on J/Y relays. One of his videos covers just fuel pump issues.
Most of us have a torx bit screwdriver in the glovebox anyway, and changing that relay is a three minute job, unless it's dark and you drop the screwdriver.
Robert just replaced a pump in his 850 T5R at 500k miles, but the one in it at this point was a J/Y pump that only had 200k on it in his car.
My suggestion would be to replace the relay first, then if the problem is persistent, do a fuel pressure test.
Avoid anything URO.

Post by **abscate** » 18 Jul 2022, 10:27

There was another brand, K something, with short-lived reports here on MVS, another one to avoid.

Post by **erikv11** » 18 Jul 2022, 20:25

That would be KAE.

Post by **wheelsup** » 20 Jul 2022, 17:01

jreed wrote: ↑18 Jul 2022, 05:36 There is an interesting description of the differences between pins 87 / 87A / 87B on relays by Rob Siegel here:
https://www.hagerty.com/media/maintenan ... ys-part-2/
Siegel writes mostly about BMW but the electrical information about Bosch components is helpful for Volvos too. He has written some good books about car repair such as "Hack Mechanic"... a highly recommended read.

I ended up finding a thread on here about my exact problem. Guy had my same relay.

In the end he bought the Volvo branded one on FCP that I did and it worked. Fingers crossed, it's on the way for me.

Post by **wheelsup** » 20 Jul 2022, 17:02

abscate wrote: ↑18 Jul 2022, 10:27 There was another brand, K something, with short-lived reports here on MVS, another one to avoid.

Read that as well, spent $20 more to buy blue box, or whatever color they come in now.

Post by **wheelsup** » 20 Jul 2022, 17:05

foggydogg wrote: ↑18 Jul 2022, 09:42
wheelsup wrote: ↑17 Jul 2022, 17:51
abscate wrote: ↑17 Jul 2022, 15:16 Relay is a junkyard item honestly. Probably lots have spares here, too. I do
I'd totally do that normally but at this point I don't want to get stuck and have to carry tools around with me.

At 27 years old it's starting to get up there and I've got a new Maverick on my radar, it just needs to get me to the point where they start shipping again haha.
Plus one with Dr. Abscate; Robert Spinner always looks for the date code on J/Y relays. One of his videos covers just fuel pump issues.
Most of us have a torx bit screwdriver in the glovebox anyway, and changing that relay is a three minute job, unless it's dark and you drop the screwdriver.
Robert just replaced a pump in his 850 T5R at 500k miles, but the one in it at this point was a J/Y pump that only had 200k on it in his car.
My suggestion would be to replace the relay first, then if the problem is persistent, do a fuel pressure test.
Avoid anything URO.

I found a Bosch replacement pump on eBay for $48 so bought that one.

https://www.ebay.com/itm/164829165677

I bought that, a section for new fuel line for $8, the seal for $10, and the relay for $66. So for $150 I can refresh my 27 year old fuel delivery. I'm mostly OK with that seeing as though the last time I ordered anything was a $140 resister from FCP three years ago lol. Oh wait, and a $40 brake switch I bought from Autozone. This car has been good to me and owes me nothing

.