What causes sudden idle surge on Volvo 960?

What causes sudden idle surge on Volvo 960?

960 Sudden Idle Surge: ECT Sensor Failure Changing Engine Mounts on 960/90 960 Engine Swap Transmission Problems: 960 Automatic Transmission Questions 960 Won’t Restart: PNP or Harness 960 Flashing Transmission Lights Other Concerns:

Why is my Volvo transmission not working properly?

This was a new feature aiming to increase fuel economy. While it barely improved your fuel economy, it caused excessive wear in the first gear clutches. Volvo’s fix to this problem was to update the software for the Transmission Control Module (TCM). The update disabled the neutral feature.

Is it safe to drive a Volvo with an automatic transmission?

If you are experiencing problems with your Volvo transmission, take a minute to become familiar with these problems. Volvo makes some of the safest cars on the road, but on the other hand, Volvos are known to have problems with their automatic transmission.

Do you need to replace the transmission on a Volvo?

You don’t need to take out the transmission; it takes about an hour to replace it. What you will need is a B4 Servo Kit for Volvo (30751262). A common problem, especially with the Aisin AW55-50SN and AW55-51SN transmission found in many Volvos, was a defective valve body.

What causes brake pulsation in Volvo S90?

960 Brake Pulsations 960 Driveline Noise: Failing Grease Seal at Rear of Driveshaft Removing the Camshaft Position Sensor Oxygen Sensor Code in 960 OBD-II Scanner for 96+ 960/90 Cars 960 Fuel Tank Hose Failure 960 Air Conditioning Failure Points

Where are the spark plugs on a Volvo 960?

[Responses: Carlos Torres/Tom Irwin/Warren Bain] The plugs are on the middle of the engine. Remove spark plug access cover. (Black cover on top of engine.) Once you have the black plastic cover off, number the coil packs with a magic marker 1 – 6 front to back so you can correctly replace them.

Where are the coil packs on a Volvo 960?

Remove spark plug access cover. (Black cover on top of engine.) Once you have the black plastic cover off, number the coil packs with a magic marker 1 – 6 front to back so you can correctly replace them. Coil packs are held in with a pair of 10mm bolts (A and B in the illustration.

Why does my Volvo engine cut out at speed?

Hunting Idle; Faulty TPS or ECT High Idle at Startup: TPS Failure Idle Surge, High Idle, Poor Idle: Vacuum Leak Slight Backfiring While Coasting; TPS Mis-adjusted Symptoms Related to Electrical Malfunctions: Sudden Cut-Out While Driving; Electrical Causes Engine Cuts Out at Speed: Ignition Power Stage Failure

What to do if your Volvo S90 has a bad spark plug?

A little twisting may help as there is an “O” ring seal at the top of the valve cover and a big boot at the spark plug. Remove coils from spark plugs. Do NOT disconnect coil wires. (VERY IMPORTANT) Inspect the condition of the wiring going to the coil pack. Look for crumbled insulation or charring.

What’s the problem with my 1993 Volvo 960?

I have a 1993 Volvo 960 Wagon and was experiencing the same issues as “iceman”. MarcinWeho gave a great explanation of the problem and I ran through the scenario he described. It was a temporary fix as the next day the same problem came up.

What can I do about the flashing lights on my Volvo?

Temporary fix will be to turn car to on, but don’t start it, then run the gear shift lever back and forth through the gears repeatedly. This may unclog the PNP switch for a short time. This is not uncommon. 5 people found this helpful.

What causes headlamp pulsation in Volvo S90?

Headlamp Wiper Motor Removal 960 Brake Pulsations 960 Driveline Noise: Failing Grease Seal at Rear of Driveshaft Removing the Camshaft Position Sensor Oxygen Sensor Code in 960 OBD-II Scanner for 96+ 960/90 Cars 960 Fuel Tank Hose Failure

Is the head gasket on my Volvo 960 leaking?

960 B6304 Head Gasket Replacement 960-90 Cylinder Misfire 960 B6304 Fuel Rail Leakage Problems 960 Gas Smell After Fillup

Why is my water pump on my Volvo 960 leaking?

Coolant Loss Behind Water Pump 960 B6300 Leaking Oil Cooler Fitting 960 Rear Cam Seal Repair 960 B6304 Leaking Rear Main Seal 960 Oil Pressure Problem: O-Ring Problems 960 Oil Pressure Problems: Failing Oil Relief Piston

What is the service manual for a Volvo 960?

This section of the Volvo 960 service & repair manual contains the standard maintenance procedures, specifications and general information of the 960, S90 and V90. The Volvo 960 has been equipped with a SRS safety airbag system. The service manuals for the airbags can be found below.

What kind of airbags does the Volvo 960 have?

The Volvo 960 has been equipped with a SRS safety airbag system. The service manuals for the airbags can be found below. This section contains the heater & cooling system of the Volvo 960, S90 and V90. The manual airconditioning and electronic climate control (ECC) systems are also described.

What is the oxygen sensor code on a Volvo 960?

Oxygen Sensor Code in 960 OBD-II Scanner for 96+ 960/90 Cars 960 Fuel Tank Hose Failure 960 Air Conditioning Failure Points Torque Values for B6244, B6254, and B6304 Engines

Is the Volvo 940 960 based on the 760?

That’s not weird, because the 900-series is based on the Volvo 740 and 760! In fact: only the back of the 940/960 was changed and the rest is the same, except the 6-cilinder petrol engines and the 1994-facelift of the 960. All common issues and problems of the Volvo 940, 960, S90 and V90 are included in this buyers guide.

What kind of transmission does a 960 2.5 have?

The transmission has to be from a 960 2.5 and not from a 940 or 960 turbo (only sold in Europe in 1991). Bolt patter attaching the engine to the transmission on the two engine is completely different.

When to change timing belt on Volvo 960?

See 960 Timing Belt Changefor important information regarding the timing belt change interval – which varies by model year for the 960 series – as well as the tensioner and idler pulleys which, upon failure, will destroy the belt and the cylinder head at great cost.

What kind of mileage does the Volvo S90 get?

Our S90 is a superb car that quietly oozes style and sophistication. It’s been outdone by the BMW 5 Series in the large executive class, but I’ve still loved running the big Volvo saloon. Mileage: 5,020Economy: 36.8mpg

What kind of coolant does a Volvo 960 use?

Use ONLY Volvo Type C blue coolant and distilled water. Do not under any circumstances use orange Dexcool or “all applications” coolants. For more information about leaking blocks, see the link. 960 Spark Plug Removal.

Where are the temperature sensors on a Volvo?

Engine Temperature Sensors. The B230F of the vintage discussed, 1989-1995 have in effect three temp sensors. The Temperature Gauge Sensoris at the front under intake manifold runner number two, just ahead of the knock sensor which is bolted in at an angle.

Why is my Check Engine light still on after filling up?

The cap is a crucial part of a car’s fuel delivery system. It notably prevents gasoline fumes from leaving the fuel tank, and it helps keep the whole system under the correct pressure. If your check engine light turns on immediately after a fill-up, pull over and make sure the cap isn’t loose — or still on your car’s roof.

What does check engine light mean on 1995 Ford F-250?

We are still working to obtain content for your car, however the video above is believed to have similar characteristics as your car. A check engine light can indicate a broad spectrum of problems with your 1995 Ford F-250.

What are the symptoms of a Volvo B6304 engine?

Symptoms for B6304 engines used in the Volvo 960/90 series cars with Bosch Motronic are covered in a separate 960 file. Diesel symptoms are covered in the diesel file. Some notes relate to carburetted cars: they are identified as such. General Symptoms and B2XX Series Engines: Don’t Panic: Diagnose First Before Concluding the Worst! Idle Problems:

Why does my Volvo stall at a stop light?

Have you experienced volvo stalling problems? A stop light or idle stall often means the engine is not idling fast enough (idle speed too low), or the engine is being lugged down by a load on it created by the air conditioning compressor and/or alternator.

What kind of engine does a Volvo 960 have?

Where known, these are noted in the relevent section. Symptoms for B6304 engines used in the Volvo 960/90 series cars with Bosch Motronic are covered in a separate 960 file. Diesel symptoms are covered in the diesel file. Some notes relate to carburetted cars: they are identified as such.

How can I tell if my Volvo transmission is bad?

Volvo first starts to manifest transmission problems by hesitating to engage or take too long to change gear. As the problem gets worse, you will notice a bang or hard shifting between gear. If you ignore the problem for too long, the car will go into Limp Mode and get stuck in one gear.

Why does my Volvo engine stall when the a / C is on?

If the A/C compressor is binding up, possibly due to a lack of lubrication, internal wear or an over-charged A/C system (too much refrigerant), it may be lugging down the engine when it is engaged. If the problem only occurs when the A/C is on, there is an issue with the compressor.

What causes hard shifting between gears in a Volvo?

Update TCM Software If you are experiencing hard shifting between gears, it could be caused by Transmission module software. This was a widespread problem in many Volvos from 2001 until 2007. The good news is that a simple software update performed by your Volvo dealer can often fix your hard shifting issues.

Why is the Check Engine light on in my Volvo?

Has the check engine light turned on in your Volvo XC90, S60, V90, or V60 Cross Country? It can be alarming seeing an engine warning appear on your dashboard, especially if you’ve never seen it before. A wide array of issues can cause a check engine light to come on, some more serious than others.