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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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Bad running after new head gasket - cause?Views : 28628 Replies : 386Users Viewing This Thread : |
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Sep 16th, 2019, 19:04 | #381 |
300 Register Keeper
Last Online: May 9th, 2024 17:49
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Location: Nottingham
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Interesting. A good tale of persistence!
FWIW, I understand that aftermarket AMMs can be pretty dubious. A brand new genuine Bosch one might be an idea if you have any further trouble. They can be had for reasonable sums if you know where to look. cheers James
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VOC 300-series Register Keeper '13 V70 D4 SE Lux '89 740 Turbo Intercooler '88 360 Turbo Intercooler '84 360 GLT '81 343 GLS R-Sport '79 343 DL '70 164 |
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Sep 18th, 2019, 12:23 | #382 |
Rogerthechorister
Last Online: Dec 16th, 2023 02:15
Join Date: May 2006
Location: Rochester
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Road test
I road tested today again - going well. And I think the old turboplus relay was a bit sticky due to non-use because now the turboplus comes in with a BANG at 4k revs.
That leaves 1. Cruise control not working. 2. Funny scraping noise coasting at low speed. Sounds like a brake partly stuck on but putting on the brakes does not stop it – might therefore be handbrake. 3. Excessive travel on handbrake. 4. Water getting into driver footwell. Might be the drains from the sunshine roof, might be the drains at left and right of scuttle panel, might be windscreen seal – I suspect this because I saw drips on the right hand (driver’s side) screen pillar the other day although that could also be a sunshine roof drain symptom. I have got a spare sunshine roof assembly 5. Repaint the gold calipers. 6. Respray roof and bonnet - extensive lacquer peel. I was thinking about a matt black bonnet and maybe a spray-on vinyl roof with pimp (or US hearse) portholes at the rear quarter. Left side also needs respray where she was vandalised. 7. Tastier exhaust! And louder air horns! 8. Revisit in-car audio
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B234F estate, H reg 100k miles. RIP melted B280E. 760T estate, F reg 133k miles. 940 Sport M90 estate, N reg 170k miles. 940 Sport M90 estate, N reg 100k miles, ex Lovejoy. 960 Estate, N reg, 56k miles, blown up and sold. |
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Sep 19th, 2019, 10:25 | #383 |
Premier Member
Last Online: Feb 11th, 2023 20:32
Join Date: May 2010
Location: Blyth, Northumberland
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The hand brake.
Cannot comment on any of the other “things to do” but regarding the handbrake. I’ve just completed a brake service and replace rear back plates on my 1992 940. Short time prior to starting the work the hand brake lever travel became excessive. Upon dismantling brakes found both hand brake shoe linings on the offside had broken and pieces were “floating around” in the drum.
Ian. |
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Sep 19th, 2019, 11:20 | #384 |
Rogerthechorister
Last Online: Dec 16th, 2023 02:15
Join Date: May 2006
Location: Rochester
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Oh bother
Scraping noise appears to be stuck caliper. Bah.
Water appears likely to be front right sunshine roof drain and that is an effing headlining out job at minimum!
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B234F estate, H reg 100k miles. RIP melted B280E. 760T estate, F reg 133k miles. 940 Sport M90 estate, N reg 170k miles. 940 Sport M90 estate, N reg 100k miles, ex Lovejoy. 960 Estate, N reg, 56k miles, blown up and sold. |
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Sep 21st, 2019, 21:05 | #385 |
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Last Online: Nov 23rd, 2023 14:26
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Seal it up (on the roof) with dodgy black bodge and refrain from ever touching the opening winder ... that's what I do!
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1993 2.0 Turbo SE with 1991 2.0 Turbo engine. Older is better! |
Sep 29th, 2019, 21:47 | #386 |
Miketwovolvos
Last Online: Apr 26th, 2024 17:14
Join Date: Apr 2015
Location: Birmingham
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Assuming good compression and valve timing, plus good injectors (blocked injectors can cause poor idle which goes away at higher revs) the poor idle and lambda light I think are the main clues here. The ECU sets the idle and the fuelling based on the TPS and AMM amongst others. I have had weird stuff happen when the AMM was faulty or the 6 connector block fit was poor..I would change the AMM and check the resistance of the TPS...also, if it is over fuelliing then I would check the resistances of the temp sensors in the block...they can go bad and tell the ECU it is 30 degrees below..FInally, if you could get its emissions checked...it could be overfuelling due to a leak in the manifold (or elsewhere) that the garage replaced..oxygen gets in and the Lambda sensor reads it and the ECU overfuels...esp if it is in intermittent leak...good luck with it...the AMM is self cleaning so spraying stuff into it is probably unnecessary.
Check fuel line pressure also..a failing pump could cause some issues, but I think its more likely to be the AMM and/or the block sensors Mike |
Sep 29th, 2019, 22:17 | #387 | |
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Quote:
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Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ |
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