Question about 1998 Volvo S70

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98 S70 cold start

It starts good when it is a warm day and when the temp goes below 50f it is hard to start I have change the temp sensor. I am getting a check engine light and the code is a failing secondairy injector air pump.

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Milethro,

I'm guessing your car has over 100,000 miles, right?

Hi, I currently have a 98 V70 XC Cross Country that was throwing the secondary injector air pump code. I removed the pump (under the battery tray) and it was filled with water. This happens because the check valve sticks open and allows the exhaust water vapor to accumulate in the pump as the air pump is mounted lower than the check valve (located behind engine back by firewall)

If you locate your air pump, just put 12 volts dc to it from the battery to see if it comes on and winds up..........it'll sound like a jet engine taking off if everything is working. Run jumper wires from the battery posts down to the air pump connector.

I removed the pump and freed up the bearings, then drilled two small drain holes in the casing. Works fine now. Also removed the check valve and cleaned. Checked with a MityVac vacuum pump to make sure check valve diaphrapgm wasn't leaking. Okay, just dirty. Working fine now. Do a Google search on the Volvo secondary air injection pump and you will find good info on removing the pump and valve for repairs or cleaning. These air pumps are expensive, so try removing and fixing yours first. Volvo had a bad problem with water accumulating in these pumps. Most junk yards don't have any in stock due to the cost. Most have been removed by now.

My problem now with the wagon is excessive cranking when cold. When I first try to start it, it will crank for 7-8 seconds, then start. If I immediately shut it off and try to restart it, it restarts quickly every time. Wondering if I have a fuel pressure problem? Any thoughts?

Posted on Nov 30, 2008

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1 Answer

Where is the air temperature sensor on a 97 Suzuki sidekick 1.6 auto. I want to test it cause its hard to start in cold temps and seems like getting too much fuel.


so how cold is it, KeyWest, 72F or -50F in Alaska.?
Intake Air temp sensor in air cleaner or it pipe.
infact the 1992 kick has no IAT,
it's not that, the IAT sensor has almost no effect on this engine.
(not true on 1995 8v engine, for those reading this)

The G16B engine, has MAF sensor, and it rules fueling, 99%
MAF is the Air meter.
there is an air temp correction sensor inside the MAF, but can not be replaced (decretely) and the MAF is $1000 at suzuki or $400 rebuilt by Cardone.
End guessing, start Diagnosis?
cold starts, (poor) can be lots of things. Ill list them but we do simple tests to find which one it is not guess and IAT is bad guess.

  1. never tuned up this decade. see first link below.
  2. bad fuel, old fuel (over 1year old, i have to ask)
  3. ECT water sensor reads too low, temp (rare) use scan tool.
  4. ISC valve stuck closed, starving engine of air , hard starts.
  5. IAC (ISC is electri) IAC is thermal only, not open on cold engine its bad. end story, it adds extra air cold, so if dead, engine WILL FLOOD. (cold starts floods) "too much fuel"
  6. low compression (cam belt slipped, and no longer 170PSI, makes hard starts. and loss of power. and overheating.
  7. vacuum tests show bouncing vacuum? oops. (ask)
  8. vacuum test show lazy vacuum (cat conv. melted?)


the official list is here.
cap, rotor , wireset, spark plugs. will give you GREAT spark
called tuneup (as will the 2 filters)
http://www.fixkick.com/specs/scheduleBw.jpg

http://www.fixkick.com/IGN_timing/tune-ups.html



at the least, the spark plugs are bad, on most cars 90% owners ignore the key 60,000 mile tune up, and just as many run 19 year old cap/rotor wires sets, and fails. "do the service points"
Get some Bosch parts in there, (or NGK) mag wire sets.

Mar 06, 2015 | 1997 Suzuki Sidekick

1 Answer

Cranks good but hard start


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