VOLVO 940 PROBLEM PLEASE HELP

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RPGCRAZY

Hi I have a Volvo 940 (1991 turbo model)

It starts first time every time but today it seems to have lost a lot
of power. The turbo kicks in but seem to stutter (best way I can
explain it)

It will only go upo about 75mph whereas it used to do over 100 with no
probs.

Is the turbo broken or is there something else wrong with the car?
 
RPGCRAZY said:
Hi I have a Volvo 940 (1991 turbo model)

It starts first time every time but today it seems to have lost a lot
of power. The turbo kicks in but seem to stutter (best way I can
explain it)

It will only go upo about 75mph whereas it used to do over 100 with no
probs.

Is the turbo broken or is there something else wrong with the car?
Click to expand...


Does the boost guage go up normally? If so then the turbo is fine.

I've seen several things cause this problem, fuel pressure regulator,
air mass meter, split in one of the air pipes or couplers between the
turbo compressor, intercooler, and throttle body. Clogged catalytic
converter can cause it too. Do you get black smoke out the exhaust when
you accelerate heavily?
 
Thanks for the reply and the help. When I accelerate there is no black
smoke
 
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