1986 Volvo 760 - Answered Questions & Fixed issues

get coil packs checked thats about all it cold be

1986 Volvo 760 | Answered on Aug 17, 2012 | 67 views

All automatic transmission models in 1985,1986 and onwards used either a ZF series transmission or an AW7x transmission. In either instance, shifting is accomplished by the cable at the throttle body, connected to a cam inside the transmission case. Since no brake bands and only clutch packs are utilized, it's important to keep the fluid changed according to the manufacturer's Specifications. First, have the oil serviced and screen changed. At the same time, remove the magnets and clean them of shavings. Then, adjust the cable so that it is very nearly slack on the throttle stop. This is accomplished by moving the cable adjusting jam nuts back and forth. Shortening the cable increases the shift map for shorter, harder shifts and vice versa; though it is important to ensure the crimp at the cable sheath is approximately 1mm away from the sheath end. Remember that this system is controlled by this cable and the internal governor inside the transmission case. Letting up on the gas allows the cable slack to allow the governor to increase the line pressure, allowing this car to shift to 3rd gear.

Early model ZF series are rather fragile, AW70 and AW71 series are more robust, and AW72 series transmissions are among the most stout in production at the time. Always ensure that the transmission fluid is normal in color, at the appropriate level and not full of contaminates. Do not make these adjustments until the transmission service has been completed, since there is a possibility of damage to the transmission valve body with an over adjusted cable.

To service, remove the transmission oil pan after draining the fluid. It could be hot, so ensure safety comes first to aviod burns. Remove the filter/screen. Remove the gasket and all traces of it on the sealing faces, ensuring that you do not scratch the facings on the case or the oil pan. Attached inside are several magnets, which can be removed for cleaning. They are there to catch shavings from the machining operations before they can damage the transmission. Install a new filter/screen, gasket and finally the oil pan. Install the bolts loosely and tighten only to the Specifications - overtightening will ruin the gasket and possibly damage the oil pan. Fill the transmission with the proper transmission fluid (Mercon/Dexron IIe per the transmission - see specs first) and check the fluid level, adding and topping off a little at time. Always check the fluid level on flat, level ground, passing through each gear range and waiting two minutes, cold or hot.Do not overfill, as this could damage the transmission or cause fluid to be ejected from the filler tube. Then perform the cable check, taking care to not overtighten it or else the cam will never fall against the stop. Test drive the vehicle at the end, making fine adjustments as needed.

1986 Volvo 760 | Answered on Jan 08, 2011 | 268 views

All Volvo passenger cars have a rigorous maintenance schedule. Typical items:
1) Timing belt and tensioner are designed to last only 50,000 miles. Both must be replaced when performing service on the belt drive system.
2) Transmission fluid service includes a filter and screen. It also includes cleaning of the magnets which trap particles before they can damage the transmission.
3) Models with two fuel pumps can have issues if the main pump fails or the tank pump fails. If either is suspect, change both and replace the filter, which is to be found underneath the car, in a cradle under the driver's side.
4) The fuel pump relay is especially vulnerable to failure - it is to be found on the overflow bottle (1984 to 1989 non-turbo, Regina non turbo) and all others on the driver's side, near the front of the car, aside of the battery on a clip.
5) B230F series engines use a rear-mounted distributor, the seals are prone to hardening and failure. They are all replaceable and at the time of this writing, are still obtainable. The procedure is relatively straightforward to remove and replace.
6) Oil seals all over the car should be replaced: front oil seals, cam oil seals, etc. They are all prone to hardening over the years and as such, should be replaced.
7) Vacuum lines 20+ years old usually will crumble - it is recommended to remove and replace them all. They are of different construction per the application and the general rule of thumb is to use the harder lines as they will not **** shut under high vacuum nor bulge during boost, if the vehicle is equipped with a turbocharger (1982-1986 used a GT03 Garrett, and later models used either a Mitsubishi TD04 or TD05).
8) New copper sealing washers must be used when working on the fuel or oil systems. Always use teflon tape when refitting various oil lines.

1986 Volvo 760 | Answered on Jan 08, 2011 | 220 views

no its cheap for a new one and easy to do yourself

1986 Volvo 760 | Answered on Aug 31, 2010 | 173 views

the engine is the weakest link.it is made by peugeot/citreon for volvo and is too expensive to rebuild.instead get hold of a 2.3 turbo and fit it.it is a simple job as all the bits are readily available from volvo/scrap yards(you will need the engine bell housing and gearbox,plus the propshaft.)

1986 Volvo 760 | Answered on Aug 09, 2010 | 189 views


The two meters have in common their connection to the instrument panel. So, let's check for a loose plug. Try to reach back of instrument panel from under dash to check for it.

If nothing found there, check speed sensor/gas gauge circuits for blown fuses, open circuits and broken wires.

Keep me posted.

Good Luck!!

1986 Volvo 760 | Answered on Mar 17, 2010 | 207 views


1986 Volvo 760 | Answered on Jan 22, 2010 | 190 views

If the engine runs, it's getting fuel, thus the pumps are working.

1986 Volvo 760 | Answered on Jan 16, 2010 | 103 views

At the end of the fuel rail, attached to the front of the engine, is the FUEL PRESSURE REGULATOR. check to make sure that the vacuum hose attached to it is TIGHT. If this regulator is not functioning---replace it.

You may have to do a fuel pressure test to ascertain the correct pump pressure and function of your high pressure undercarriage pump. At lower than OEM pressure, the injectors will not open, even with fuel flowing through the rail.

1986 Volvo 760 | Answered on Mar 26, 2009 | 281 views

I just got to work and figured it out not much different than other vehicles. Thanks for your concern and getting back to me.

1986 Volvo 760 | Answered on Dec 21, 2008 | 124 views

If there is condensation building up under the distributor cap, perhaps the cap is not vented properly.

Volvo 760 Cars &... | Answered on Jan 26, 2014 | 107 views

Hi William
to start with, check if there is output voltage from the alternator it self ( at the back of the alternator ) using a voltmetre
Chould give 14.0 Volt, if is OK, that means you have a broken wire between the alternator and the battery, this is common.
good luck

Volvo 760 Cars &... | Answered on Jan 16, 2014 | 58 views

check the wiring connection under the inlet manifold for your cold start injector and your cold start sensor. clean or dry it if dirty or wet. pull apart and clean.and clean the butterfly at your throttle with throttle cleaner.and clean your idle control valve piston may be sticking due to dirt.

Volvo 760 Cars &... | Answered on Dec 12, 2013 | 51 views

need a small 7 mm spanner to remove .mark each lead with a number in the order of removal .change both it and your rotor arm at the same time.

Volvo 760 Cars &... | Answered on Dec 12, 2013 | 20 views

EFI-212 indicates the o2 sensor wiring is open, or the o2 sensor itself is faulty (replace o2 sensor). Rarely, it could be a problem with the LH computer itself though that has its own code: EFI-112.

Volvo 760 Cars &... | Answered on Nov 08, 2013 | 48 views

simple pour coka a cola on the plugs then sand wipe with sand paper let dry then try

Volvo 760 Cars &... | Answered on Aug 17, 2012 | 86 views

You probably have either a bad tach or a bad wire connection. The wiring of the tach is very simple - there are really only three leads to deal with:

1. 12v positive from ignition - may be a red wire, goes to switched side of ignition switch to provide 12v when the key is on.
2. Ground - goes to ground - usually black wire
3. Tach sense - goes to the ignition - usually grey wire
4. Light - there is probably another pole for an internal light - this would go to the nav/dash light circuit to pick up 12v when the lights are on. It would have no effect on the operation of the tach.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Volvo 760 Cars &... | Answered on Dec 14, 2011 | 138 views

some cars dont go by timing marks to set distributer you will have to make sure of the way your car gets set the best way is too pull number one spark plug put finger on hole have some turn engine with wrench until you fell compresion then get the piston all the way to the top then check were its at then if its still 180 out then pull it and put in right place only if you feel you can go into it that far

Volvo 760 Cars &... | Answered on Feb 10, 2011 | 53 views

Thats possible but not as likly as the intake gasket being failed or next the head gaskets or cracked heads. Freezing without enough antifrezze is a cause for a leak down lower but it's possible if your right theirs crakes in othe parts too that you won't notice over the bigger leak or not full enough.to see the other leaks cyclinder linder leaks can almosr anlways be fixed with sop leak raditor additive and don't for get to change the oil as oil with coolant in it won't lube the engine parts well enough and it'll tear the whole engine up. If you've got it all the way down the orginal replacement gaskets are fine they just gave up over not having the coolant changed on a regular bacis. If you thing about it 78 was a long time ago and if you fix it now will it be running in 2047 for you to do it again? Sure O rings would be nice like road tractors use on the big cats, but this is a car, stock will be fine.

Volvo 760 Cars &... | Answered on Jan 28, 2011 | 68 views

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