What are the correct timing marks and positions for a Volvo 940 Turbo? I especially need the position of the crankshaft pulley. I have read the timing mark is on the cover, but unfortunately mine has dry rotted and crumbled away.
View 1 RepliesI am acquiring a 1991 Volvo 740 Turbo and am concerned about the need to change the timing belt. The seller does not have record of it being changed since he had the car for two years. He had only put about 10,000 miles on it since he had acquired it. It now has 186,000 miles and runs perfect and basically in good shape for its age. If the belt breaks does it ruin the engine?
View 2 RepliesI recently purchased a 1991 Volvo Turbo 740 with 186,000 miles on it. It runs perfect for a few days and then when parked will not start. Attempt to start 1/2 hour later it starts and runs perfect again. It has done that for several days now. I have driven it to locations approximately 40 miles round trip with frequent stops for a period of time and then start up again. This AM it started up perfect as I moved it from a driveway to part in front of my house on the street. Several hours later I went to start it but it would not start. 1/2 hour later I decided to try one more time before calling the tow truck to take to a mechanics and it started up perfect again. I drove it to the library and bank later and ran perfect after the two stops. This is driving me nuts since I had taken it to a mechanic when it did this Monday and it ran great at the mechanics and he could not determine what was wrong. He told me WHEN it stops again to have it towed in and he could determine at that time when it was not running.
View 7 Replies94 850 turbo will randomly smoke like crazy at which time it fills the car with smoke completely fogs whatever street you're on.
View 1 RepliesIt starts and idles fine and drives fine until the turbo spools and gets past atmospheric.. at this point the acceleration gets worse even though you can clearly hear the turbo blowing (gauge well into the yellow).. checked the ground connections on the head and intake, seemed good, replaced tps, replaced knock sensor, replaced hall sensor, tried another ecu, checked cam timing. Had a volvo mechanic friend looking at it prior to my fiddling with it and he seemed to think the ignition timing was retarded too much.. but I've done everything i can think of to tackle that problem.
View 3 Replies760 turbo intercooler 2.3 4-speed auto. It will not idle properly but when you run it around town it is fine, smooth and powerful. If you take it out on the motorway it will be ok for speeds up to 55 (lumpy going uphill) if you push it over 70 it is ok, but between 55 and 70 it is rough and sort of misses without backfiring. Also a cloud of black smoke comes out of the exhaust. If you kick it down to 3rd it will go like a rocket and not miss at all!! It has been seen by the RAC and been in the garage and they say everything is working, but can't check the air flowmeter as it would cost too much to buy one and it works fine.
View 3 RepliesI have a problem with my 1988 740 Turbo. It starts and runs fine, but when cold it experiences a drop every few seconds when idling. In other words, when idling cold, it will act as though the key was turned off but just before stopping completely it catches and continues to run.
I guess I'm trying to describe something other than rough running, or a poor idle - this is more like an ignition short where the engine completely stops (but never does). The tach needle shows this also. It continues doing this while accelerating around the neighborhood but once the car is at operating temp it smooths out. I live in San Diego so it never gets cold here.
The car was tuned up last year and the distributor was replaced at the same time. New cap, wires, plugs. Car has close to 290K and still runs great except for this issue.
My 1999 Volvo has been diagnosed by a Volvo dealer to have a bad "cooling fan relay". Another shop analysis states the "cooling motor fan assembly module" is the problem. Are these one in the same? Can I replace it with one from the salvage yard? Are there any bad omens with messing up other electronic components If I make the repair myself?
View 9 RepliesMy 1994 850 turbo will crank but will not start. it started when the car was having trouble accelerating past 40 mph and felt like it was kicking back then it died on the freeway and now will not start. i ran the error codes and got these back, from A2 452, 455, 543, 544, 545, 552, 555 and from A7 122. I'm not sure what to do?
View 4 Replies1991 740 Turbo
200k
all stock
Now days I hear exhaust gas leak from inside engine room when the motor is fully warmed up and ran for some time. The other day I put seafoam treatment in the car and I saw white smoke coming from the turbo charger area.
Is exhaust gas leak from the turbo charger common? What are the possible cause for this?
I purchased a 2004 volvo c-70 with 35K miles.The manual says to replace the timing belt at 100k or 10 years.With such low miles do I need to replace it in 2014?
View 6 RepliesThe past summer my 1994 Volvo 940 non-turbo over heated and we worked on the coolant system and got it working god again. However just after we fixed it the headlights blew out and we replaced them and then they blew out again. The battery was also going dead when the car was turned off and all electric things were turned off. Now the head lights don't blow but once they are turned on with the switch in the car they cant be turned off unless the battery is disconnected.
Also as of now none of the dash board instruments are working. With the car on and the lights turned on we pulled the connector to the switch that turns on the lights, that is on the dashboard, and the lights still stayed on. We can only think that some water may be causing the problem but it may or may not. I need to know how to fix the headlight problem and the instrument panel.
My Volvo 850 turbo 1997 heat up after i change head gasket every thing is OK after 5 minutes off automatically. Any sensor problem.
View 1 Repliesi have just bought a 1988 740gl turbo and i was driving it the other day and when i came to a set of lights just as i stopped the car stalled on me then wouldn't start...
i left it for a hour or so came back and it started and i drove away and only went a few kms home.... what would this be i haven't driven it since!!
I just got my 1996 volvo 850 turbo wagon running, after I replaced a valve, lapped all the valves and replaced all valve stem seals/full stage zero(timing belt, plugs, wires, cap, rotor, thermostat). Boy was she a strong runner, for the whole day it was running. I do admit to abusing it quite a bit. But what else would you expect from an 18 year old kid who just rebuilt his first volvo engine ? Now, i will note that the car had horrid previous owners, that took no care of the car(ran it low on oil and who knows what else). I know I ran it out of oil once, on the way home from buying it.....the guy did not put the oil filter on tight enough, and it blew the oil filter seal out. Luckily volvo's have low oil sensors. after i rebuilt the top end my engine was throwing out blue smoke for a while, but i thought it was just a bad turbo bearing.
Anyways, to cut to the chase; My engine sounds like this one. [URL]......
I did a compression check, all cylinders at 180 psi. all my lifters look good. I had a few plugged oil passages in the cam cover, but none that go to the lifters. i pushed on all valve springs, they look good. i used a screwdriver and hammer to check if the valve guides pulled out, and the valves are solid in place. I was still making boost even though the engine was knocking like this, so i know its not a rod bearing, because the knock sensors would have picked up on it and dropped the boost.
I have a 1994 volvo 940 turbo, the transmission has been fine, but today out of nowhere the car will not rev past 2500rpm. But only when its in drive, if i drop it to 1st or 2nd it will rev fine?
View 1 RepliesI'm a newbie who just took ownership of a 1982 turbo wagon. It's been sitting a while but started right up and ran well for about 20 miles until it began stumbling on acceleration.
The car starts easily and runs smoothly until it gets hot and then it suffers severe hesitation and stumbling. Occasionally it will stall but starts right up again. It has never failed to restart immediately.
On a cool day, it will run smoothly for thirty minutes or more before the problem begins. On a hot day, the problem begins in five minutes.
Took my 850 Turbo out on the freeway today, and when I put the pedal to the floor on the onramp there was a very disconcerting loss of power just as the turbo was really kicking in. No issue under mild to medium boost, but when pushed hard there is a short loss of power/hesitation, almost like a backfire, then boosts again, then the same power loss until I back off on the gas. Cannot get full boost without this happening.
View 7 RepliesHave 1996 850 Turbo sedan. When tank is full the gas gauge needle will only go up 2/3 of the way, when nearing empty, needle is below red line. Gas light does work. Can I just remove instrum. Cluster and manually turn needle to top (after a fill up)? If not can I just replace the gauge/motor behind panel or do I have to replace instrument cluster?
View 2 RepliesI have a 1994 Volvo 940 non turbo wagon. I just started having issues with the brakes lights and taillights not working. I have checked all the fuses visually and also did a continuity test on each one found all the fuses were good. I have replaced the all the relays, I have replaced the large red relay ( bulb failure relay ) and even did a continuity check on the bulb failure relay pins that are specifically for the rear brake light, everything checked out fine. I hesitate to change the brake light switch because the third brake light is working fine. I have considered replacing the headlight switch due to the taillights won't come on when the lights switch is on. My headlights do work though. There is no light on the dash indicating a bulb is out now since I replaced the third brake light bulb.
1994 Volvo 940 wagon
Non turbo
This 1996 (220KM) car will run fine (perfect)for about ten minutes from cold (I'm talking -5 C)then starts to misfire when warmed up. Difficult to pull away (automatic) from a stop. Sound like its missing on two cylinders. Really chunters.
Installed new plugs, wires, cap, rotor, coil,filter. Don't know what to check next. Car will work at speed but I can feel it missing. Gun it and it will go. Doesn't appear to be a fuel problem.