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Car Forum / Volvo Cars / June 2004Fuel Pressure Regulator? 940 Auto 2LTR 8-Valve 1991 (UK)
Hello, My 940 has been running fine, only just lately causing problems when the engine is already warm. To keep it going I have to rev it up a little, gradually easing off the throttle until "normal" tickover is established. I can even tell when it will stall as the rev counter "hunts" up and down a bit unless I give it some more throttle. Also, occasionally when pulling away from a junction it will cough/miss a little, which I feel is part of the same problem? I have done some research on the net about this with lots of reference to the Fuel Pressure Regulator and was going to replace this myself. I could not source the part from one of the motor factors that I normally use, so I bit the bulet and went to my local Volvo Agent (Kings in Salisbury). The part was not in stock and I was advised that as this could be a number of things, it would probably be better for them to look at it. Thanks for following so far! My questions are :- 1/. Should I replace the part myself hoping to hit it in one OR let Kings talk me into having their technicians look at it? 2/. Anyone dealt with Kings and what are they like when it comes to so-called intermittent faults? Thanks in advance. Steve Hobbs Salisbury, UK 150,000mls so, it's just run in right! http://brickboard.com/FAQ/700-900/HotStartProblemQuickReferenceGuide.htm#Section IIEngineStartsOnlyAfterProlongedCranking http://www.volvoclub.org.uk/faq/EnginePerformanceSymptoms.html#PoorPerfomanceBad AccelerationFaultyFPR Sounds like one of two problems. The Idle air motor can stick. Sometimes taking the hose off and spraying WD40 or some kind of rust breaker into it will free it up The other problem could be the throttle position sensor. With the car off, go under the bonnet and open the throttle by hand, You should hear a slight click as you open it indicating that the switch is opening, That doesen't mean it is good, just that it is set properly.. Good luck. > Hello, > My 940 has been running fine, only just lately causing problems when the [quoted text clipped - 21 lines] > Salisbury, UK > 150,000mls so, it's just run in right! http://brickboard.com/FAQ/700-900/HotStartProblemQuickReferenceGuide.htm#Sec tionIIEngineStartsOnlyAfterProlongedCranking http://www.volvoclub.org.uk/faq/EnginePerformanceSymptoms.html#PoorPerfomanc eBadAccelerationFaultyFPR Thanks Rod, I've taken the throttle body off and given it a dam good clean (without removing the switch or getting it wet). New gasket fitted when I put it all back together. Throttle position sensor does click as soon as you open it up. Still the same. Do you know of any weblinks re the idle air motor so that I know what I'm looking at? I did'nt want to go spraying WD40 down the wrong pipe!! Cheers Steve ps Local Dealer charges ?79/hr to "Have a look" Rather do it myself & spend the money on new parts! > Sounds like one of two problems. The Idle air motor can stick. Sometimes > taking the hose off and spraying WD40 or some kind of rust breaker into it [quoted text clipped - 33 lines] > > Salisbury, UK > > 150,000mls so, it's just run in right! http://brickboard.com/FAQ/700-900/HotStartProblemQuickReferenceGuide.htm#Sec > tionIIEngineStartsOnlyAfterProlongedCranking http://www.volvoclub.org.uk/faq/EnginePerformanceSymptoms.html#PoorPerfomanc > eBadAccelerationFaultyFPR Think I found one :- http://www.volvopartbypart.com/catalog/product_info.php?cPath=25_30&products_id= 185&osCsid=1f5f5783cd78abd63b0a31b446c3f70b Should be hung under the throttle body somewhere, right? If I can find it, I give it a little squirt! Steve > Thanks Rod, > I've taken the throttle body off and given it a dam good clean (without [quoted text clipped - 56 lines] > > > Salisbury, UK > > > 150,000mls so, it's just run in right! http://brickboard.com/FAQ/700-900/HotStartProblemQuickReferenceGuide.htm#Sec > > tionIIEngineStartsOnlyAfterProlongedCranking http://www.volvoclub.org.uk/faq/EnginePerformanceSymptoms.html#PoorPerfomanc > > eBadAccelerationFaultyFPR |
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