S40 V40: - Running problems

Paul H v70 · Oct 27th, 2008, 19:23

Got a v40 1997 2.0 starts ok then when running it hesitates and holds back and splutters between 1-2000 revs.when over 2000 no problems or when you put foot down it clears.ive changed plugs,ht leads,coils,injecter cleaner but still the same.also noticed on trip computer oil temp is always cold when running regardless for how long.can anyone please help?????

manoman48 · Oct 31st, 2008, 09:14

Having read this I would say your two problems are definitely related.

The car still sees the coolant, and therefore engine as cold, hence is always running on choke (over-fuelling).

Your mpg must be pretty bad?

Paul H v70 · Oct 31st, 2008, 09:22

first of all many thanks.when first start car it ticks over at 1200 with choke on when choke not on ticks over at 750-800 i dont think choke is stopping on when tick over is alot lower.im very confused with what it is and what can be done about it.any further advice would be more than welcome

Paul H v70 · Oct 31st, 2008, 09:23

also forgot to mention ive changed coolant sensor

manoman48 · Oct 31st, 2008, 11:16

What's your average mpg?

Paul H v70 · Oct 31st, 2008, 14:35

26 mpg over 2wks

manoman48 · Oct 31st, 2008, 18:04

Seems low to me. Mine runs at an average of 31mpg with 5 days of a 6 mile commute and then usually a decent run at weekends.

Motorway journeys I average 35-37mpg

Paul H v70 · Oct 31st, 2008, 18:47

the last run wos too manchester with 4 people inn and it did 36.4 so not to bad.

manoman48 · Oct 31st, 2008, 19:04

Was that even with the oil displaying cold? That's about right I would think.

Maybe others know if your brand of x40 has an oil temp sensor?

Paul H v70 · Oct 31st, 2008, 19:18

yes thats with oil displaying cold on trip as it was only last week when i went.ive now replaced the thermostat and cleaned idle valve,will let you know over weekend if it as solved my problem.many thanks again to all

Oct 27th, 2008, 19:23	#1
Paul H v70 Member Last Online: Sep 11th, 2014 18:17 Join Date: Oct 2008 Location: dewsbury	Running problems Got a v40 1997 2.0 starts ok then when running it hesitates and holds back and splutters between 1-2000 revs.when over 2000 no problems or when you put foot down it clears.ive changed plugs,ht leads,coils,injecter cleaner but still the same.also noticed on trip computer oil temp is always cold when running regardless for how long.can anyone please help?????

Oct 31st, 2008, 09:22	#3
Paul H v70 Member Last Online: Sep 11th, 2014 18:17 Join Date: Oct 2008 Location: dewsbury	running problems first of all many thanks.when first start car it ticks over at 1200 with choke on when choke not on ticks over at 750-800 i dont think choke is stopping on when tick over is alot lower.im very confused with what it is and what can be done about it.any further advice would be more than welcome

Oct 31st, 2008, 09:23	#4
Paul H v70 Member Last Online: Sep 11th, 2014 18:17 Join Date: Oct 2008 Location: dewsbury	running problems also forgot to mention ive changed coolant sensor

Oct 31st, 2008, 14:35	#6
Paul H v70 Member Last Online: Sep 11th, 2014 18:17 Join Date: Oct 2008 Location: dewsbury	running problems 26 mpg over 2wks

Oct 31st, 2008, 18:47	#8
Paul H v70 Member Last Online: Sep 11th, 2014 18:17 Join Date: Oct 2008 Location: dewsbury	running problems. the last run wos too manchester with 4 people inn and it did 36.4 so not to bad.

Oct 31st, 2008, 09:14	#2
manoman48 Master Member Last Online: Apr 28th, 2023 11:20 Join Date: Mar 2007 Location: Sc.unthorpe	Having read this I would say your two problems are definitely related. The car still sees the coolant, and therefore engine as cold, hence is always running on choke (over-fuelling). Your mpg must be pretty bad?

Oct 31st, 2008, 11:16	#5
manoman48 Master Member Last Online: Apr 28th, 2023 11:20 Join Date: Mar 2007 Location: Sc.unthorpe	What's your average mpg?

Oct 31st, 2008, 18:04	#7
manoman48 Master Member Last Online: Apr 28th, 2023 11:20 Join Date: Mar 2007 Location: Sc.unthorpe	Seems low to me. Mine runs at an average of 31mpg with 5 days of a 6 mile commute and then usually a decent run at weekends. Motorway journeys I average 35-37mpg

Oct 31st, 2008, 19:04	#9
manoman48 Master Member Last Online: Apr 28th, 2023 11:20 Join Date: Mar 2007 Location: Sc.unthorpe	Was that even with the oil displaying cold? That's about right I would think. Maybe others know if your brand of x40 has an oil temp sensor?

Oct 31st, 2008, 19:18	#10
Paul H v70 Member Last Online: Sep 11th, 2014 18:17 Join Date: Oct 2008 Location: dewsbury	running problems yes thats with oil displaying cold on trip as it was only last week when i went.ive now replaced the thermostat and cleaned idle valve,will let you know over weekend if it as solved my problem.many thanks again to all

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