v70 t5 phz2 2000 hesitation as pickup.

neil16377 · Post by **neil16377** » 10 Apr 2011, 10:09

hi, im new to these forums and am hoping that someone can help me out,.
i have just recently bought a v70 full volvo service history.95,000 miles,.
i have not driven it much, week 1 i booked in to a local volvo for a full service,.
i knew someone at the garage well ,so he took it in for me while i had to work, he phoned me when he arrived and told me about the hesitation when you put your foot down, so i thought new plugs ect. would solve the issue. but it has not .
can anyone please tell me what to check for, i have not much money left since buying the vehicle and installing the 7 seats for the kids, any advice would be very welcome .

forgot to mention the vehicle had apparently been on vida in the work shop and no faults were found.
would all faults show on diagnostics??

thank you neil

neil16377 · Post by **neil16377** » 10 Apr 2011, 12:39

i was just thinking , could a cracked air filter box/cover cause it???????????

neil16377 · Post by **neil16377** » 13 Apr 2011, 12:44

update- sealed the filter housing, and went for a run
I noticed that the hesitation happens at about 3000 rpm,s
after the split second hesitation she really goes well.

i have been told to check ETM-
and vacum pipes- can anyone tell me which vacum pipes should i check please

also is there a way of checking the coil packs??

i have had her scanned by volvo and no faults were found, i cant really afford to have her checked over at an hourly rate,.
so if there is anything i can check myself, i would be thankfull for anyone,s help neil

jda2000 · Post by **jda2000** » 14 Apr 2011, 07:07

If there are no codes, and only a slight hesitation I say live with it for now until the codes are triggered for what needs replacing.

The easy inexpensive stuff to do yourself:
-new plugs correctly gapped
-clean the MAF sensor
-check for vacuum leaks
-replace the fuel and air filter
-you might need new coils if originals.

neil16377 · Post by **neil16377** » 14 Apr 2011, 11:08

so your saying that a misfire does not always throw up codes??? would the hesitation need to worsen in some way for the codes to show. also would "for example a hose leak show up as a code" or would that have to be tested by other means?

and thank you so much for taking the time to respond to my question,, thank you

jda2000 · Post by **jda2000** » 14 Apr 2011, 13:04

yes the misfire could be intermittent and not throw a code.

remove the coils and check for fine cracks. If you see cracks, then you are due for new ones. Replace them all.

Post by **JRL** » 14 Apr 2011, 15:15

A true misfire WILL throw a code a hesitation usually does not
If it only happens at a certain RPM only you probably do not have a misfire