Question about Volvo 740

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I have a 1988 Volvo 740 that is blowing transmission fluid out of the exhaust. Someone said replace the transmission modulator, but I cannot seem to find a part that matches that wordiong.

The car had set at my mother's and not been driven for over a year. I know it is trans fluid as the oil is fine and had to add a Qt of tran fluid as it was low.

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  • Expert
  • 111 Answers

If that is so your radiator is bad

Posted on Mar 27, 2014

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6ya6ya
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Posted on Jan 02, 2017

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Brian032472
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SOURCE: 1996 Sunfire - Can't find the transmission fluid dip stick

There isn't one your not crazy. There is a small red cap on the drivers side of the engine compartment for adding fluid I would recommend having it checked at a repair shop it can be a pain in the rear

Posted on Nov 05, 2008

motor1258
  • 6674 Answers

SOURCE: 2004 chrysler sebring transmission was leaking but now has stop

Keep a close eye on the level, and watch for drops in driveway etc. Even try placing something under the transmission area if you have to, like cardboard or plywood. Good chance it didn't cure itself, but stranger things have happened I guess. Hope you used Mopar transmission oil to re-fill it. believe it or not, I don't work for Chrysler but have heard many a story about chrysler transmissions acting up because of wrong fluid in them, even when lube places tell you it's o.k to use something else. Just a heads up.

Posted on Dec 11, 2008

cactus bob
  • 267 Answers

SOURCE: 1990 Volvo 740 GL Wagon Leaking Transmission Fluid

the trans pan might just need a touch up on the bolts , cold weather will shrink the gasket a little bit , if you cant do it yourself , find someone thats handy to just touch up the bolts 1/4 to 1/2 turn on any that will move easly good luck

Posted on Jan 17, 2009

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SOURCE: 4L60E blowing Transmission fluid out the dipstick tube

too much oil in tranny,vent tube on top of tranny is blocked!

Posted on Apr 08, 2009

  • 4369 Answers

SOURCE: Where do I add the transmission fluid? HELP

it is like a lincoln LS. same trans. here is procedure. please don't forget to rate. thanks

Fluid Fill Reference NOTE: The left side of case is shown. The fill plug is on the right side of the extension housing.

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Item Part Number Description 1 — Fluid fill plug (bench) 2 — Fluid level 3 — Fluid drain plug (large) 4 — Fluid level and fill plug (small) 5 — Fluid level tube
Check

  1. Place a drain pan under the transmission.
  1. NOTE: It will be necessary to hold the drain plug (larger plug) with a wrench when removing the fluid level indicator plug.
    With the transmission in the PARK position and the engine running, use a 3/16 inch Allen key to remove the fluid level indicator plug.
  1. Allow the fluid to drain. Wait approximately one minute. When the fluid comes out as a thin stream or a drip, it is at the correct level.

  1. If no fluid comes out of the hole, fluid will need to be added. Continue with this procedure.
  1. Install the special tool into the pan.
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  1. Using the special tool, extract approximately one pint of clean automatic transmission fluid from a suitable container.
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  1. Using the special tools, fill the transmission with clean automatic transmission fluid.
  1. Remove the special tool.
  1. Allow fluid to drain. Wait approximately one minute. when fluid comes out as a thin stream or drip, the fluid is at correct level. If no fluid drains from the plug, continue adding clean automatic transmission fluid in 1/2-pint increments until fluid starts to drain from the plug.
  1. Remove the special tool from the pan.
  1. Reinstall the fluid level indicator plug.

Posted on Aug 05, 2009

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1 Answer

88 volvo 740 needs trans fluid where does it go in


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1987 740 Auto Trans wont shift till warmed up


Run the engine til hot, check the transmission fluid... If it is dark/dirty red and smells bad, it needs to be changed. If it hasnt been changed in your knowledge in the last 40,000 miles, change it anyway. If that doesnt fix it and the fluid was very smelly even after u changed it and ran it for an hour on the road, the trans may have to be rebuilt. There are some treatments you can add and many do work well, so go to autozone or Napa and check em out. I would recommend high mileage additives anyway if the mileage is high as you'll get more life out of the transmissio...hope that helps...if so rate me..

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1990 Volvo 740 GL Wagon Leaking Transmission Fluid


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Jan 17, 2009 | 1999 Volvo S80

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Here is what I found was the problem with my 1988 740 GLE Wagon.
Remove the phillips screw that holds the cigarette lighter in place. Now remove the ash tray. Next, pull the storage tray and cigarette lighter assembly and lay to the side.
You will see two trays, one with the fuses and one with the relays. The one you want to look at is the relay tray.
On the far left side of the tray and the 2nd relay from the back is the relay that engages the ignition when you turn the key to the start/ Run position.
It is very likely that is simply a bad connection where the relay pprongs plug into the socket in the relay tray.
wiggle and pull up on the relay assembly until it comes out of the tray.
Now just tweek the prongs slightly on the relay so they will make a firmer contact in the socket.
Now put the relay back in the same position it was in originally. Pull it back out and put it back in a couple of times to clean any corrosion oin the contact prongs.
Try to start the car now. This will probably correct the problem.
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