2001 Volvo S80: hesitation when accelerating

Filed Sep 9, 2011 · Acceleration · IA

Tl* the contact owns a 2001 volvo s80. The contact stated that the vehicle would hesitate before responding to acceleration attempts. The vehicle was taken to the dealer where they advised that the throttle module had failed and needed to be cleaned and replaced. The throttle was cleaned but the dealer was unable to duplicate the failure after the cleaning so the throttle was not replaced. The failure recurred within a few weeks. The manufacturer was contacted and offered no assistance. Updated 09/27/11 *bf updated 09/30/11

Filed Oct 31, 2008 · Engine · RI

Hesitation, surging, loss of power, etc. This car runs so erratically that I am even afraid to change lanes in traffic because I am just afraid that it is going to stop right in the middle and I am going to be hit by the car behind me. I am afraid to stop at traffic lights because the car wont accelerate and run normally therefore ill have upset drivers in back of me waiting until the car decides to move forward. This is very dangerous especially when you are driving with a lot of traffic around you. I have taken it to the dealer but they just say that if there are no messages or codes they cannot do anything about it because volvo wont reimburse them for the expense. This erratic behavior has been happening more and more often and I don't believe it has been a day that has not happened since it first started. I have had an upgrade, a cleaning but no replacement in sight.

Filed Jan 17, 2007 · Acceleration, Engine · CO

We began reporting problems with hesitation and surging in our 2001 s80 t6 several years ago to the service department at our nearest dealer, sill terhar motors in broomfield, colorado. They tried replacing a turbo valve and a software upgrade that was available at the time, and we were told that using the highest octane fuel would be necessary in order to prevent the hesitation. The problem continued. Given the inconvenience of the dealers location and that they had not seemed to be able to correct the problem, we had the vehicle serviced for a while at an independent volvo mechanic. Last fall the emissions and check engine warning lights turned on, and they replaced an oxygen sensor and/or mass air sensor. The warning lights turned on again, and they recommended that we go to the service department at the dealer. We learned of the "extended warranty" volvo was beginning to offer as a result of the problems in the design of the electronic throttle module. In early december we left the vehicle with the service department at sill terhar, and they did the software upgrade. Within days the vehicle was running horribly and was stalling in intersections. Sill terhar had the vehicle towed and reported that the problem was due to a hose that had not been fastened securely. Due to travel during the holidays and the multiple snowstorms in colorado in late december, we drove this vehicle in early january after having put only about 100 miles on the vehicle since the time that it was reportedly fully cleared of problems with regard to the etm, the check engine warning light turned on again. We returned to sill terhar, and they said that the problem was due to a faulty right front oxygen sensor. They were certain that this was unrelated to the etm problem. That most recent work cost us $400. We picked up the vehicle last friday evening and, today, only a few days later, the check engine warning light has turned on yet again.

Filed Jul 3, 2006 · Engine, Transmission · 90,000 miles · VA

Initially lack of acceleration and sputtering on acceleration, check engine light and emission system error message. Codes reset. Then problem recurred approximately one month later. Dealer provided etm software download. Approximately 3 weeks after download, check engine light on, weak acceleration, hesitation or slipping on shifting.

Filed Mar 26, 2006 · Fuel system · 69,000 miles · AR

2001 s80 volvo etm failure. It started as vehicle hesitation, then proceeded to surging forward with no throttle input, then progressed to no accelerator response when applying the brake pedal, then to stalling when coasting leaving the driver with no power steering or brakes at speeds up to 55 MPH, then to rough idle and check engine light. All symptoms were present upon taking to the dealer based on some web research to identify to problem. The dealer returned with an analysis for timing belt replacement, engine tune up, engine coolant flush, crankcase ventilation system cleaning, brake system flushing, and mass air flow replacement amounting to an initial cost of $1980.00 us. I requested a conference with the technician, and a review of the diagnostics report. The end result was a maf replacement paid for by me (customer) and amazingly the tech notes recommended cleaning of the crankcase ventilation system and the etm cleaning which was covered by the dealer. Total cost was $328.21 to consumer and balance covered by dealer. The repairs were made on 3/07/06, replaced maf unavailable. I feel that I have been taken advantage of and essentially paid $328 unnecessarily due to further web research identifying cleaning of the etm and crankcase ventilation system would in fact cause trouble codes leading the replacement of the maf.