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Car starts but has trouble accelerating

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
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5rivers
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5rivers

Car starts but has trouble accelerating

Post by 5rivers » Sun Dec 01, 2019 7:07 pm

Greetings all,

My '98 Volvo V70 base has been developing problems accelerating after I start it. If I let the car idle for five or so minutes, accelerating is not a problem. But, after starting it, if I put it in drive (or reverse) I have to really push down on the gas pedal, the rpms go up to 3000 or more, and slowly the car will move forward (or backward). The car will coast after this and with slight pressure on the gas pedal, the car will begin to pick up speed. Then after about a mile, I can put regular pressure on the pedal and the car will respond as it should.

I recently (back in August) replaced with fuel pump with a salvage yard replacement. After that it ran fine. But, am wondering where I should look first to begin to solve this acceleration problem. I am thinking its a relay of some kind.

As always, I appreciate any and all suggestions and/or recommendations.



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abscate

Re: Car starts but has trouble accelerating

Post by abscate » Sun Dec 01, 2019 7:11 pm

Check your ATF level if you have an automatic. If you are low. The torque converter will take about that time to pump up.

Check your manual for the procedure on checking level. It’s very different than an engine oil dipstick.


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Re: Car starts but has trouble accelerating

Post by wizechatmgr » Sun Dec 01, 2019 8:56 pm

Also note that if the ATF in it isn't synthetic, some of the older technology stuff may act like that until warmed. I found my transmission was happier after I changed the fluid.


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5rivers
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5rivers

Re: Car starts but has trouble accelerating

Post by 5rivers » Mon Dec 02, 2019 2:56 am

I will check the ATF fluid level and report back. The type of fluid in the car now is not synthetic (yet!).
Thanks for your speedy replies and recommendations!!



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abscate

Re: Car starts but has trouble accelerating

Post by abscate » Mon Dec 02, 2019 3:21 am

You should be shoveling out first this morning, K.

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5rivers

Re: Car starts but has trouble accelerating

Post by 5rivers » Mon Dec 02, 2019 3:47 am

That's what I thought as well, but so far the accumulation does not require much effort to move. There might be more later in the day, however!



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Re: Car starts but has trouble accelerating

Post by scot850 » Mon Dec 02, 2019 9:36 am

Is your car a turbo automatic trans? Is it particularly cold where you are and has the issue just started since it got cold?

If yes to all the above then it could be your intercooler freezing. When this happens the car will sometimes not move at all until the engine has warmed through enough to defrost the intercooler.

Neil.


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5rivers

Re: Car starts but has trouble accelerating

Post by 5rivers » Mon Dec 02, 2019 7:34 pm

The car has a regular auto transmission, no turbo.
It has been between 6 degrees and 22 degrees F over the last week. Not quite as cold in the week before but still in the 20's. We had one warm day when it reached 48 F!!!
Where might I find this intercooler under the hood?



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Re: Car starts but has trouble accelerating

Post by scot850 » Mon Dec 02, 2019 8:47 pm

Non-turbo so no intercooler. So this is not the issue with your car.

Neil.


2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
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abscate

Re: Car starts but has trouble accelerating

Post by abscate » Tue Dec 03, 2019 4:13 am

Bring it down to ALBANY and I’ll fix it while you shovel my snow this am.

That’s real cold country up there , K. Beautiful. People who think NY is all concrete canyons have to hit the North country

My Transporter might be lost until Spring
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